Reliability Test Design: Linking Fatigue and Reliability
Reliability and durability fit together in product validation testing. Often the product’s life requirement is specified as needing to last for a certain duration with certain reliability and confidence requirements, like this:
‘The part must be free of visible cracks with a reliability greater than 90% with 90% confidence after being subjected to lab loading representative of 4,000 service hours.’
Durability analysis, life data analysis and reliability analysis can help engineers answer critical questions like how long to test and how many parts to test in order to meet these life requirements. HBM Prenscia software provides tools to help answer these challenging questions.
This 45-minute webinar will concentrate on:
- Introducing reliability to the durability test
- What is the Weibull distribution
- Test specifications, reliability and confidence levels
- Number of samples to be tested
- Duration of test
This webinar will be held Monday, May 22, 2017 at 10:30 AM EST (15:30 GMT / 16:30 CET).
The Role of Vibration Fatigue in nCode DesignLife
In many applications, stresses calculated from a dynamic analysis are required to obtain accurate results. When this is the case, the choice must be made whether to perform the analysis in the time or frequency domain.
The 45 Minute webinar will look at:
- The considerations in making that choice, and the focus on applications available when the frequency domain is chosen.
- Applications that include virtual simulations of both shaker qualification tests and actual real world loading.
- Damage models for low cycle fatigue, welds and composites will also be examined.
Originally presented on April 3, 2017
Aqira – Extending nCode Software to the Next Level
Engineers are increasingly challenged with the need to ensure the right product durability with even greater reliability — and in less time. With this in mind, HBM Prenscia has developed Aqira, a new web-based product that delivers an integrated engineering solution for all proficiencies of users across physical test and virtual simulation departments. Its many features are designed to address common engineering and IT challenges by offering tools that increase productivity and unite engineering processes all while delivering flexibility and control.
The 45 minute webinar will concentrate on:
- The ability to manage and share analytical processes
- Performing scalable, server-based analysis
- The beneﬁts of cost-effective deployment and licensing
- Control and track license token usage
Originally presented on March 15, 2017 by Jon Aldred, VP of Product Management
Modal Analysis with nCode VibeSys 13
Modal Analysis is the process of characterizing the dynamics of a machine or structure in terms of its dynamic properties. With nCode VibeSys, modal analysis can easily be performed to answer questions such as: What are the modal frequencies? What are the damping ratios? What is the mode shape at a specific frequency? How good is a modal FE simulation compared to a modal test?
This 45-minute webinar will concentrate on:
- Introduce modal analysis and share the benefits nCode VibeSys has for troubleshooting noise and vibration problems.
- Live demos will concentrate on two glyphs Experimental Modal Analysis and ODS Display, insisting on their additional capabilities in v13.
Webinar originally presented on March 1, 2017
nCode 13: Functionality and Performance Improvements
nCode 13.0 offers improvements in functionality and performance for nCode DesignLife, nCode GlyphWorks and nCode VibeSys.
This 45-minute webinar will concentrate on:
- nCode DesignLife: We have new capabilities for vibration based spot weld and seam weld analysis. In addition to the standard capability of vibration fatigue using stress-life (SN), it is now possible to also use strain-life (EN) analysis methods for vibration loads.
- nCode VibeSys: We have continued the development within Modal Analysis by providing new methods in experimental modal analysis and the display of operating defection shapes.
- nCode GlyphWorks improves with many general usability enhancements including the move to support Python version 2.7.12 for scripting of custom processes both with GlyphWorks, VibeSys and DesignLife.
Originally presented on February 23, 2017
Rotating Machinery Noise and Vibration Analysis with nCode VibeSys
This webinar will concentrate on the analysis of measured vibration signals induced by a rotating machinery with nCode VibeSys. Several techniques for obtaining a smooth RPM signal will be presented. This webinar will demonstrate how to produce Waterfalls or Campbell plots illustrating how vibration data is related to the rotational speed profile from run-up, coast-down or even non-monotonic/ fluctuating RPM signals. It will also cover how to get smearing-free and leakage-free waterfall of order spectra by resampling the data in the revolution domain. Extraction of order slices together with the overall spectrum will also be shown.
Originally presented on December 7, 2016
Fatigue of Welds using nCode DesignLife
Welding is a commonly used and effective method for making structural joints between metal parts. However, the nature of the welding process means that these weldments generally have a fatigue strength that is inferior to that of the parts being joined together. The result is that, even in a well-designed structure, the welded joints are likely to fatigue. Any evaluation of the durability of a welded structure must therefore place a high priority on a fatigue assessment of the welded joints.
This webinar will review underlying methodology and approaches in nCode DesignLife for predicting the fatigue life of welds using finite element models consisting of either shell or solid elements. A demonstration will review how nCode DesignLife can be used for predicting fatigue life of welds, including the hot spot stress extrapolation capability released in nCode 12.1.
Originally presented August 31, 2016
Modal Analysis in nCode VibeSys v12.1
Modal Analysis is the process of characterizing the dynamics of a machine or structure in terms of its dynamic properties. With nCode VibeSys modal analysis can easily be performed to answer questions such as: What are the modal frequencies? What are the damping ratios? What is the mode shape at a specific frequency? How good is a modal FE simulation compared to a modal test?
This webinar presentation will introduce modal analysis and share the benefits nCode VibeSys has for troubleshooting noise and vibration problems. Live demos will show two new glyphs, Experimental Modal Analysis and ODS Display, released in nCode 12.1.
Originally presented on August 25, 2016
What's new in nCode 12
In this presentation nCode Product Manager, Paul Roberts, shares the new technologies and enhancements introduced at nCode version 12.
Originally presented on March 3, 2016
Acoustics and Vibration Analysis with nCode VibeSys
Discover the acoustic and vibration challenges that can be addressed with nCode VibeSys.
Originally presented on March 10, 2016
Composite Failure Analysis in nCode DesignLife
Advanced fibre-reinforced plastic (FRP) composite materials are ideal for structural applications where high stiffness-to-weight and strength-to-weight ratios are required. Such materials are inherently heterogeneous. Typically, they are made of a polymeric matrix reinforced by continuous or discontinuous fibres.
The wide range of fibre and matrix types along with the multiple fibre arrangement possibilities makes FRP composites behave in a more complex way than conventional metals. As a result, they not only have a strong anisotropic behaviour but also predicting failure can be challenging.
In this webinar, we will explain how to predict intra-laminar failure in long continuous FRP composite structures subjected to real life multiaxial loading conditions. We will demonstrate how to select the right criterion for detecting critical regions where failure is likely to occur. We will also show how to accurately predict margin to failure.
Originally presented on June 9, 2016
Fatigue Analysis of Short Fibre Reinforced Injection Moulded Thermoplastics
Short fibre reinforced injection moulded thermoplastics offer a very useful compromise between cost and performance, and are increasingly being used in structural components. However, as with any material system, the advantages of these materials cannot be fully exploited without a means of evaluating their durability at the design stage. Without such evaluation, there is a high risk of producing parts with unquantified safety factors, resulting in premature failures or overdesign.
In this webinar, we will describe some recent developments in fatigue modelling of these materials, including the handling of their inhomogeneity and anisotropy. We will also examine some of the challenges in interpreting material characterisation tests and show the latest capabilities in nCode DesignLife.
Watch this webinar to learn more on:
- Recent developments in fatigue modelling of short fibre reinforced injection moulded thermoplastics
- nCode DesignLife
- Interpreting material characterisation tests
Originally presented on June 30, 2016
nCode Experts Top 10 series
10 Common Mistakes in Fatigue Analysis
Durability prediction is a common task for engineers – but how do you make sure you’re doing it right? In this webinar, we’ll look at ways to improve your fatigue analysis by exposing common mistakes and showing simple ways to improve your process.
Originally presented on: February 26, 2014
10 Ways To Avoid Wasting Time on Durability Testing
Are you running the right durability test? Does your testing take too long? Validation testing is an important part of product development, but it can be expensive, slow, or downright useless if you’re not careful. In this webinar, we’ll look at ways to improve your testing by making sure you’re running the right test.
Originally presented on: March 19, 2014
10 Ways To Perform Faster Fatigue Analysis
Does your fatigue analysis take too long – because of FE model size, or too much stress history data? In this webinar, we’ll look at ways to speed up your durability calculation while retaining all the powerful analysis capabilities you need.
Originally presented on: April 30, 2014
10 Ways to Make your Process Smarter with Metadata
Discover the top ten ways to leverage metadata to make your GlyphWorks process smarter. In this webinar, we will demonstrate how to use metadata in equations, properties, and results tables to enable process automation.
Originally presented on December 17, 2014
Overwhelmed by Data? Solutions for Making Key Decisions from your Test Data
Engineers are often overloaded with data and can waste much time looking for the data they require. Timely storage, retrieval, and usage of that data often limits the ability to get the right information to the right person, causing costly delays and/or wrong decisions to be made. All too commonly, the location and meaning of the data is really known only by the test engineer who measured it. Data from expensive physical tests can rapidly become worthless, and in some cases, complete tests may have to be repeated.
One part of the solution is to enable collaboration between the design, analysis, and test departments; another is to use web-based technology to automate data analysis efficiently. This webinar will highlight how large amounts of data are handled efficiently in nCode Automation, a collaborative, web-based environment for automated analysis and test data management.
Originally presented November 12, 2013
Test Data Warehousing for Aerospace Applications
Especially suited for applications where large amounts of data are generated, nCode Automation is a private-cloud based solution that provides direct access to streamline test data acquisition, monitoring data and analysis. It’s an online system designed to automate data analysis and provide summary information, trends, and reports all while managing data upload and user rights.
Key information is delivered through interactive reports and email notifications which can be triggered based on pre-defined performance indicators extracted from the data. Applications include managing data from long-term structural tests and operational loads monitoring programs on airframes.
Specific case studies will be presented including Lockheed Martin F-35 static and durability testing.
Originally Presented: December 06, 2012
Managing data from fleets of test vehicles using nCode Automation
Increased demand for real-world data means greater use of fleets of test vehicles. This webinar shows how nCode Automation provides an off-the-shelf solution for managing and more importantly converting all this engineering data into useful information.
Originally presented: November 15, 2011
Maximizing the Value of Test & CAE data using nCode Automation PE
How much time do you spend looking for the right data?
How do you organize and find the results from many finite element simulations?
nCode Automation PE provides the ability to index, search and analyze large amounts of test and CAE data. This webinar shows the latest time-saving capabilities of nCode Automation PE such as the ability to search finite element models used in nCode DesignLife fatigue analysis.
Originally presented: July 22, 2010
Introduction to nCode Automation Personal Edition
This webinar gives an introduction to a new product, nCode Automation Personal Edition (PE) – and shows with live examples how the ability of Automation PE to manage and find data is an ideal add-on product to GlyphWorks.
nCode Automation PE takes the power of nCode Automation with its search and data warehousing capabilities and applies it to local data on a laptop or shared drive. nCode Automation PE increases the productivity of the individual user – making it possible to quickly find, organize, and analyze data that is directly accessible from your computer.
Originally presented: March 4, 2010
Automated Test Data Analysis for Aerospace
nCode Automation is our solution for streamlining test data acquisition, monitoring data and analysis. It's an web-based system designed to automate data analysis and provide summary information, trends, and reports all while managing the data upload and user access.
Applications include flight testing, structural testing, and performance monitoring.
This 45-minute webinar will highlight features & benefits as well as customer applications.
Originally presented: May 28, 2009
Automated Test Data Analysis for Automotive
nCode Automation is our solution for streamlining test data acquisition, monitoring data and analysis. It's an on-line system designed to automate data analysis and provide summary information, trends, and reports all while managing the data upload and user access.
Applications include road load testing, lab testing, and customer usage profiling.
Originally presented: May 21, 2009
Fatigue Analysis - General Topics
Ensuring Aircraft Integrity through Streamlined and Automated Data Processing
The landscape of the aerospace industry is advancing rapidly, in order to stay competitive companies must strive to make components lighter, run at higher operating speeds, and survive at higher temperatures, all without sacrificing mechanical integrity. As this trend continues, engineers are required to perform more extensive and new types of testing and simulation to ensure they meet the required reliability, quality, and durability standards demanded by the industry. In doing so, companies are quickly amassing huge amounts of data that needs immediate processing. Demonstrating specific capabilities, the presenter will highlight ways to streamline and automate your data processing and reporting needs using nCode software.
Watch this webinar to learn how nCode software can be used for:
- Waterfall Analysis, Joint-Time Frequency Analysis, Order Tracking, and Campbell Plotting
- Accelerated Shaker Profile Creation
- Test-Based and CAE-Based Stress-Life/Strain-Life Fatigue Analysis
- Single Axis, Sequential, and Multiaxial CAE-Based Vibration Fatigue
- Python and Matlab Custom Code Integration
- Automated Reporting
Originally presented on September 30, 2015
nCode for Fatigue and Durability Analysis
This webinar will provide a brief introduction to the theory and background of fatigue and durability analysis, and will discuss how engineering analysis techniques can be used to estimate the fatigue life for products you're designing.
Demonstrations will be given for using nCode software for fatigue analysis of both measured strain gauge data simulation results from finite element analysis.
Originally presented on September 16, 2015
Fatigue Curves & Material Datasets
It can be technically challenging to simulate fatigue failure, but it's impossible to get accurate fatigue life calculations without specific and reliable materials data. Fatigue life prediction methods used in industry are often empirically derived from performing laboratory tests at different load levels, resulting in expensive material tests. nCode 10 introduces a new Premium Materials Database with 72 materials datasets derived at its own ISO 9001 certified Advanced Materials Characterization facility.
This webinar provides an overview of how fatigue curves are defined and how to use them, and also the new Premium Materials Database introduced at nCode 10.
Originally presented on April 9, 2014
Important Factors in Material Fatigue Testing
Component durability is directly influenced by how the properties of a material will respond to loading. The accuracy of any damage calculation is dependent on the quality of the input data. At times we have no option, but to have our material tested to obtain the required material fatigue parameters.
This webinar takes a closer look at the important aspects of a material test, and how to specify the appropriate test with respect to accuracy and cost.
Originally presented on October 22, 2014
Vehicle Lightweighting: Remove weight, not strength
With the push to create lighter weight products, engineers are presented with the challenge to maintain a balance between reducing weight and retaining strength. By utilizing fatigue calculations it is possible to evaluate where mass reduction can be achieved without sacrificing durability.
This webinar will discuss the engineering considerations for maintaining durability when lightweighting, topics will include:
- Steel vs Aluminum
- Fatigue of fiber-filled composites
- Joining of dissimilar materials
Originally presented on October 15, 2014
Why Does Your Product Break?
Fatigue is often cited as one of the most common forms of operational failure in structures. Its nature is an often apparently premature failure at relatively low, but cycling, stress levels.
This presentation will describe the background to both fatigue and fracture mechanics and shows where each discipline comes into play in the search for safe structures. The distinction between high cycle and low cycle fatigue is shown and other important features found in this form of analysis.
Originally presented on August 13, 2014
Introduction to Vibration and Dynamics
Structural vibration is both fascinating and infuriating. Whether you’re watching the wings of an aircraft or the blades of a wind turbine as they flex to absorb turbulence, you have to admire the elegant engineering that discriminates between a structure’s ability to absorb loads against its desire to resonate and shake itself to pieces... [read complete description]
Originally presented on October 30, 2013
The Re-emergence of Aerospace Metals
Composites may have been the aerospace industry’s darling over the past few years, but the use of metals in aircraft systems and components has not gone away and is not expected to any time soon. Whether airframers are designing an all-new aircraft or trending more toward substantial redesigns of existing types, the end goal is the same: improved fuel efficiency.
In this on-demand webcast from SAE, the editors of Aerospace Engineering, industry experts will discuss some of the latest technological breakthroughs and challenges facing engineers tasked with making thorough use of high-strength metals in various aircraft systems and structures while simultaneously reducing weight, improving fuel efficiency, and maintaining structural integrity.
Originally presented on September 26, 2013
An Update on Materials Engineering & Selection
Materials engineering is developing at a rapid pace. New materials, which boast improved performance in many areas, are continually being introduced. At the same time, many traditional materials are being either changed or withdrawn through environmental legislation. Fatigue resistance is only one attribute of a material. As design engineers working in fatigue, it is important that we understand how fatigue performance is affected by changes in our materials. How do we specify fatigue performance? How do we know if a proposed material is a suitable replacement for an existing solution? Very often the understanding that led to those original solutions has been lost in time and we certainly do not want to reproduce errors of the past.
As a person with design responsibility you might consider the following point
- What questions should the materials specialist be asked?
- What data are needed to support the design?
- Can I guarantee the suitability of this material for fatigue?
This free webinar will provide a brief introduction to materials engineering and selection for new design engineers as well as offer a refresher course for senior engineers.
Originally presented on: April 25, 2013
Introduction to Fatigue Analysis Theory
Fatigue analysis is an important aspect of component design. Typical yield stress design criteria miss the fatigue cycles seen in actual service use and hence can lead to improper design.
This webinar will provide a brief introduction to what fatigue means, what drives fatigue failures, and common methods of durability analysis. This is a great introduction for engineers tasked with validating a design against fatigue criteria, or anyone who wishes to learn more about the engineering practice of fatigue analysis.
Originally presented: February 27, 2013
Comparison of Fatigue Analysis Methods
There are three well established methods for calculating fatigue; Stress Life, Strain Life, and Linear Elastic Fracture Mechanics. Each method is available in nCode GlyphWorks and nCode DesignLife and has a unique set of requirements and formulations. This webinar explores the differences of these methods and describe where they are most applicable.
Originally presented: April 18, 2012
nCode CDS & Advanced Licensing Topics
How do you maximize your investment in nCode software and get the right people using it when they need it?
This webinar shows the benefits in using a flexible licensing system, nCode CDS for running any combination of nCode product options. This avoids the need for lengthy justifications and additional costs for new purchases. nCode CDS provides cost effective method for accessing all of GlyphWorks, DesignLife and Automation PE.
Also demonstrated is how to use license borrowing to assign a floating license to a computer for a specific period of time. This can enable licenses to be used at off-site locations such as at test sites and proving grounds. License borrowing is also available with the flexibility of nCode CDS licensing units.
Originally presented: 21 October 2010
Applications of Frequency Based Fatigue
Vibration can lead to fatigue and durability challenges. Frequency domain excitation provides numerous benefits in fatigue analysis, but it raises some questions about applicability and best practices.
This webinar explores the application of fatigue analysis techniques for vibration-induced loading, including when frequency-domain loading is applicable, and which excitation methods are best for different applications.
Originally presented on August 26, 2015
Benefits of Load Reconstruction
Accurate load histories are critical in the successful prediction of structural response. Load reconstruction in nCode DesignLife offers a powerful technique for estimating service loads without a traditional load cell. The principal of linear strain response is leveraged to turn a standard component’s strain responses into load histories, bypassing the challenges associated with installing traditional load transducers. The loads reconstruction capability in DesignLife turns a component into its own force transducer, allowing calculation of these load histories.
This webinar discusses both the loads reconstruction process, as well as capabilities in DesignLife to determine the optimal positioning of the strain gauges.
Originally presented on August 12, 2015
Multiaxial Fatigue Life Prediction
Many components and structures are subjected to complex loads in service, which may result in fatigue damage. In some cases, the magnitude and/or phase of local stress components may vary with time, giving rise to complicated multiaxial stress conditions. Multiaxial stresses require greater sophistication both in terms of modelling stress-strain response, and predicting fatigue damage.
This webinar will illustrate how nCode DesignLife can tackle complex multiaxial stress states using advanced models for multiaxial plasticity and damage accumulation.
Originally presented on July 22, 2015
Advances in Finite Element Based Vibration Fatigue Analysis
Vibration fatigue is a failure mode that can affect many of today's complex components and assemblies. Often these components are subjected to service vibration on multiple axes simultaneously.
This webinar looks at nCode DesignLife's new functionality to analyze fatigue damage due to simultaneous multiaxial random PSD loading. It also outlines the importance of phasing between these loads, and how phase is calculated and used in DesignLife.
Originally presented on July 8, 2015
Fatigue of Welds for Heavy Equipment
Welding is a commonly used and effective method for making structural joints between metal parts in the heavy industry. However, the nature of the welding process means that these weldments generally have a fatigue strength that is inferior to that of the parts being joined together. The result is that, even in a well-designed structure, the welded joints are likely to fatigue. Any evaluation of the durability of a welded structure must therefore place a high priority on a fatigue assessment of the welded joints.
This webinar will review underlying methodology and approaches in DesignLife for predicting the fatigue life of welds using finite element models consisting of either shell or solid elements. A demonstration will review how DesignLife for HyperWorks can be used for predicting fatigue life using a weld definition created by HyperMesh and stress results from OptiStruct.
Originally presented: May 12, 2015
Fatigue Analysis from non-linear FEA
nCode DesignLife can perform fatigue analysis on non-linear FE solutions, allowing you to assess damage when physical conditions require more than simplified linear assumptions. These non-linear steps can be evaluated sequentially, capturing any non-linearity caused by plasticity, contact, or other factors.
This webinar will demonstrate the steps required to process non-linear FE solutions.
Originally presented on November 19, 2014
Ensuring Full Vehicle Durability
Full vehicle durability is the assessment and understanding of an entire vehicle’s fatigue characteristics with most or all of its components in place. The benefit of performing this type of analysis is that the complex interaction between components is accurately captured. The challenge is that the calculation time can become very long.
In this webinar, you’ll learn how to optimize full vehicle fatigue simulations to minimize solution time, while maximizing result accuracy. Demonstrations will include how to use multiple run passes, and the auto-elimination wizard in nCode DesignLife.
Originally presented on November 5, 2014
Distributed Analysis and High Performance Computing with nCode DesignLife
nCode DesignLife performs CAE-based fatigue analysis using results from all leading FE codes, identifying critical locations and calculating fatigue lives. It has a state-of-the-art complement of CAE durability tools, including stress-life fatigue and strain-life fatigue analysis engines. New capabilities released with nCode DesignLife 9.1 now support job submission for distributed and high performance computing.
This webinar gives practical instruction in setting up DesignLife to efficiently analyze models for design optimization and the solution of larger jobs on remote or clustered computers. The main emphasis will be on the use of the new distributed analysis feature and the associated batch submission utility.
Originally presented on October 15, 2013
Correlating FE and Test
The Virtual Strain Gauge feature in nCode DesignLife provides a unique, powerful way of correlating physical test with finite element simulation results. It also facilitates the reconstruction of applied load histories from measured strain gage data on a component.
This webinar shows from start-to-finish how to setup Virtual Strain Gauges on your finite element model, and how to extract the strain results. It will also demonstrate the procedure for using load reconstruction to predict the input loads on a component during operation.
Originally presented on September 24, 2013
Corrélation simulation et mesures physiques
Les jauges virtuelles dans nCode DesignLife offrent un moyen unique et puissant de corrélation entre les mesures effectuées lors d’essais et les résultats de simulation par éléments finis. Elles facilitent également la reconstruction de l’historique de chargement à partir des données mesurées par des jauges de déformation sur un composant.
Ce webinar présente du début à la fin l’utilisation optimale des jauges de déformation virtuelles et physiques. Et notamment :
- Nettoyage des signaux mesurés par des jauges physiques
- Corrélation jauges physiques et virtuelles, validez simplement votre modélisation éléments finis.
- Reconstruction de chargement réalisé à partir de données mesurées par des jauges physiques (sans capteur d’effort).
- Application : Optimisation d’un essai banc à partir de mesures réelles
Presented on June 18, 2014
Powertrain and Safety Factor Analysis
Fatigue life is one of the most important factors to consider in the design of powertrain components. These parts can be submitted to loading from both the engine and road loads.
nCode DesignLife performs CAE-based durability analyses using FE results, identifying critical locations and calculating fatigue lives. This presentation will demonstrate the features available in DesignLife that directly apply to the durability analysis of powertrain components, topics will include:
- factor of safety calculations for both high cycle and low cycle fatigue
- analytical simulation of PSD based electro-dynamic shaker table tests
- automated compensation of notch sensitivity for FE based fatigue calculations
- techniques for temperature compensated and thermo-mechanical fatigue
Originally presented on September 17, 2013
Performing FE-based Fatigue Analysis with nCode
nCode DesignLife performs CAE-based fatigue analysis using results from all leading FE codes, identifying critical locations and calculating fatigue lives. It has a state-of-the-art complement of CAE durability tools, including stress-life fatigue and strain-life fatigue analysis engines.
This presentation will provide an introduction to perform fatigue analysis on FE models in nCode DesignLife. Attendees will become familiar with the nCode user interface and how 'glyphs' are used to create processes. Both Stress-Life (SN) and Strain-Life (EN) fatigue calculations on FE models will be discussed.
Originally presented: April 3, 2013
Analysis Methods for Fatigue of Welds
At version 9.0, DesignLife can now use solid element models for seam weld analysis. This expands the range of seam weld analyses to thicker components as well as to structures that are not readily modeled using shell elements. This new capability employs the stress integration method outlined in the ASME Boiler & Pressure Vessel Code VIII, Division 2 to calculate the required structural stress and bending ratio. An outline of this procedure will be presented along with examples of the stress linearization and fatigue results.
An overview of available analysis methods in nCode DesignLife for analyzing fatigue of welds will also be discussed.
Originally presented: March 4, 2013
Tips & Tricks for Using New Technology in nCode DesignLife 9.0
This webinar will explore the new technologies available in the newly released nCode DesignLife 9.0 and share ways to apply them in your durability and CAE fatigue analysis.
Demonstrations will review:
- Entity subsets
- Back calculations
- Multi-body dynamics
- Structural animation
Originally presented: February 20, 2013
Designing Landing Gear for Durability
Aircraft landing gear consists of mechanical, electrical, and hydraulic assemblies which undergo a range of motion during flight that result in unique design challenges. As one of the most maintenance- intensive parts on an aircraft, significant considerations must be taken during the design process to ensure the reliability of the landing gear in order to minimize aircraft downtime.
During this webinar the latest solutions in use by major Aerospace suppliers are presented. The Designing Landing Gear for Durability webinar will examine topics such as:
- Fatigue analysis using finite element simulations
- Using material fatigue data such as MIL-HDBK-5
- Aero spectrum loading for flight based duty cycles
- Assessment of damage per maneuver
- Virtual strain gauges for correlation to measured data
Originally Presented: Wednesday, November 28, 2012
Signal Processing for nCode DesignLife Users
An important input to durability analysis is service loading: How does a customer actually use the product you are designing? and, how can your durability analysis best reflect these loads?
In this webinar, we will explore how signal processing tools can be used to accurately define input loads for FE-based durability analysis with nCode DesignLife. Demonstrations will also show how these signal processing tools – frequency spectra, statistical analysis, cycle counting, etc. – improve understanding of service loading.
Originally presented: Tuesday, March 27, 2012
Fatigue of Composite Materials
The fatigue of composites poses particular challenges for engineers because of the properties of the constituent parts (polymer matrix and fibers) interact to determine the fatigue properties which vary in each location and direction. Fatigue analysis requires the combination of various inputs including material modeling, finite element analysis and fatigue characterization of the material based on fiber-share and orientation. This webinar gives an introduction to these topics and gives a preview of the fatigue life prediction of short-fiber composites introduced in nCode DesignLife 8.
Originally presented: November 16, 2011 and March 13, 2012
This webinar discusses the unique combination of software and services for CAE simulation and materials testing for thermo-mechanical fatigue.
Originally presented: March 6, 2012
Durability Assessment of Adhesive Bonds in Vehicles Bodies
This webinar describes a fracture mechanics-based approach for the durability assessment of adhesive (and hybrid) joints in vehicle bodies. The drive to reduce carbon emissions is motivating car and commercial vehicle manufacturers to develop increasingly lightweight vehicle bodies, usually constructed from high strength steels and aluminium alloys. In order to realize the potential strength and durability of such structures, adhesive bonding is commonly used, normally in conjunction with spot welds and self-piercing rivets. The method described here, and implemented in nCode DesignLife 8.0 as part of a 3.5 year research project, provides a CAE tool for evaluating the durability of adhesive and hybrid joints during the design/development process. This is essential if unnecessary overdesign and un-quantified safety factors are to be avoided.
Originally presented: February 23, 2012
Batch Processing in nCode DesignLife
This webinar gives practical instruction in setting up DesignLife for batch submission enabling design optimization and the solution of larger jobs on remote computers.
Originally presented: November 10, 2011
Better fatigue and durability decisions
nCode DesignLife can help make better FE based fatigue predictions with a powerful list of features including Plasticity Corrections, Multiaxial Assessment, Stress Gradients, and Mean Stress Corrections.
These features allow for few assumptions and greater confidence in evaluating fatigue related issues before real parts are fabricated.
Originally presented: 04 November 2010
Design Optimization & Robust Design for Fatigue
This webinar demonstrates the use of nCode DesignLife with commercial process integration and design optimization software. In this example, we use DesignLife together with modeFRONTIER. You will see procedures that can modify the DesignLife process properties, run that process in batch, and capture key results.
To illustrate this, nCode DesignLife is shown as a part of two modeFRONTIER workflows. The first workflow performs a stochastic fatigue analysis, assuming several of the DesignLife inputs are statistical distributions rather than fixed constants, where the resulting output is a distribution of predicted life. The second example includes DesignLife in a workflow performing multi-objective shape optimization, where fatigue life is one of the constraints on the design space.
Originally presented: December 15, 2009
Designing for Performance: Wind Turbine Durability
Fatigue is an important design consideration for modern wind turbines. In this webinar we describe how fatigue failure locations and fatigue life estimates can be obtained using Finite Element-based stress analysis. Guidance is given on selecting appropriate material parameters and load spectra, along with advice on how to optimize the analysis for faster preliminary design assessments.
An overview of the theory is also presented for those who are new to FE-based fatigue analysis.
Originally presented: June 30, 2009
Virtual Durability using DesignLife and Abaqus
This webinar demonstrates usage of nCode DesignLife in combination with Abaqus.
Usage of Abaqus linear and non-linear results will be examined. Examples of fatigue analyses using modal dynamic, and steady state dynamic results will also be shown. A demonstration of DesignLife will be given, and features enabling it to efficiently analyze large models described.
Originally presented: May 27, 2009
Ensuring the Durability of Wind Turbines
Utilizing wind turbines for electric power generation depends on the structural integrity of the equipment operating continuously over long periods of time. This 45 minute webinar demonstrates how nCode software is used by turbine designers and operators to:
- Predict fatigue damage in design of key components such as gearboxes
- Understand the structural loading envelope
- Monitor operational performance and identify statistical trends
- Assess the reliability and structural integrity of the systems for long term operation
Originally presented: March 3, 2009
Looking at Measured Data in the Frequency Domain
The frequency domain is another approach that engineers can use to understand service loading. This webinar introduces the frequency spectrum, how it is calculated, and how it can be used to learn about product usage, vibration, and durability.
Originally presented on September 2, 2015
Fatigue and Durability Analysis with nCode GlyphWorks
Fatigue life is number of cyclic stress and strain reversals a component can withstand before failure occurs. To avoid unnecessary overdesign and prevent operational failures, it is vital to be able to understand and predict fatigue.
This webinar will demonstrate various ways of processing measured strain gauge data using nCode GlyphWorks. We will discuss the strain-life (EN) fatigue calculation method, strain gauge rosette calculations, as well as other fatigue-related data processing techniques.
Originally presented on June 17, 2015.
Time Frequency Analysis
nCode GlyphWorks is a powerful data processing system for engineering test data analysis. Unique capabilities include the analysis of signals in Time or Frequency domains.
Time domain is traditionally preferred for transient signals whereas frequency domain is typically applicable to steady state processes. Joint Time Frequency analysis is a way to combine both the time domain and frequency domain information into one plot, referred to as a spectrogram or waterfall.
This webinar will cover several applications of Time Frequency analysis, mostly related to rotating machinery. It will also emphasis on the new features in nCode v10.0 to do with Time Frequency analysis.
Originally presented on April 16, 2014
GPS Visualization & Processing
GPS data can tell you a lot more than just where your hotel is when you’re lost! Engineers can use GPS data to learn about vehicle performance and durability.
In this webinar, we’ll discuss the powerful GPS display and analysis capabilities available inside nCode GlyphWorks software. We’ll explore how time-synced GPS and channel data allow better understanding of what happens in the real world – and where it happened. We’ll also look at new GPS analysis capabilities - like calculating road gradient, vehicle acceleration, and power – and gain insight of customer usage from simple GPS measurements.
Originally presented on March 26, 2014
Block Cycle Test Creation in nCode GlyphWorks
Block cycle testing is a common method of component durability validation. It relies on the concept of equivalent fatigue damage to condense complicated service loads into a simple set of cycles that can be easily reproduced in the test lab.
In this webinar, you’ll learn how to decrease lab test time and complexity, while guaranteeing maximum accuracy, by reducing complicated service loads into a simplified block cycle test with equivalent damage.
Originally presented on December 10, 2014
Vibration Analysis in nCode GlyphWorks
Vibration analysis can help calculate, filter, and display the frequency content of measured data. These frequency options, available in nCode GlyphWorks, provide a powerful, simple-to-use range of vibration analysis capabilities with particular application to rotating machinery, octave analysis and frequency response.
This webinar will take a look at a number of tools available in GlyphWorks that analyze:
- Frequency Spectrum
- Joint Time Frequency Analysis
- Waterfall Analysis and Order Tracking
Plus, filtering tools that include:
- Fast Fourier Filter
- Order Tracking Filter
- Weighting Filter
And finally displays that include:
- XY Display
- Waterfall Display
- Slice Display
Originally presented on October 1, 2014
Introduction to nCode GlyphWorks Super Glyphs
In their simplest form, Super glyphs can be used to consolidate a number of other glyphs into one, removing workspace clutter. This feature can also help simplify the reuse of a group of glyphs. A Looping Super glyph can also enhance a process by running in an iterative fashion.
This webinar will explore examples of Super glyphs and Looping Super glyphs.
Originally presented on September 17, 2014
Advanced Fatigue Calculations in nCode GlyphWorks
Dig deep into the fatigue analysis tools of nCode GlyphWorks and uncover new capabilities! This webinar will explore advanced features like using back calculation mode in nCode GlyphWorks to see how input stresses need to be changed in order to achieve a target life, how to accelerate time-domain rig tests by removing non-damaging cycles from a strain history, and much more.
Originally presented on September 10, 2014
Good Data Gone Bad
Why it is important to recognize bad engineering data before using it for durability and performance analysis. Hosted by Tech Briefs Media Group
Collecting good time series data is not a trivial task. This presentation will shed some light on causes and examples of bad data, and what separates good data from bad data. We will explain ways to recognize bad data, and suggest best testing and analysis practices to ensure the best possible engineering decisions are being made.
Originally presented: June 26, 2014
Powertrain Durability Analysis using Measured Data
Powertrain components like gears, differentials, and shafts are subjected to severe cyclic loading. Assuring product durability requires a good understanding of loading and rotational cyclic behavior.
This webinar will explore methods of predicting powertrain durability, including both low- and high-cycle fatigue - both in the time and rotation domains.
Originally presented June 4, 2014
Vibration of Rotating Machinery
Rotating machinery such as turbines, gears, and pumps can often lead to objectionable vibration or durability concerns. Analysis of these machines can be difficult because underlying usage trends may not be immediately apparent.
In this webinar, we'll explore ways to analyze data in the time, frequency, angle, and order domains - with analysis methods include order tracking, joint time-frequency analysis, and periodic statistics. The right combination of analysis tools in time, frequency, and periodic domains can highlight performance characteristics and enhance product performance.
Originally presented on: December 10, 2013
Shaker tests are important for product validation - but what profile to run? Learn how to create accelerated shaker profiles for frequency domain testing.
In this webinar, we'll explore how concepts of vibration and durability analysis can be brought together to create a realistic shaker test. We'll also show how quantifiable comparisons can be made between existing shaker profiles – for example, how to compare a sine sweep test to a random PSD test, or how to compare an existing test specification with new measured field vibration data.
Originally presented on: November 26, 2013
A Better Way to Use MATLAB for Test Data Analysis
nCode GlyphWorks is a powerful data processing system for engineering test data analysis by HBM. It is a highly flexible graphical tool that provides direct support for many engineering file formats, has powerful built-in C++ signal processing functions, In addition, nCode GlyphWorks can directly use MATLAB® to add unique and proprietary methods and algorithms.
Originally presented October 22, 2013
Report Generation with Studio
Creating engineering reports can be very time consuming because of the need to bring together large amounts of data into the required format.
This webinar will show how to create professional quality reports quickly in GlyphWorks using the Studio Display glyph. Topics include report creation, linking to GlyphWorks analysis, and exporting reports to popular third party formats like PowerPoint, HTML, and PDF.
Originally presented on September 12, 2013
Editing Time Series Data with GlyphWorks
Often measured time series data needs to be cleaned or edited before it is analyzed. This webinar will explore editing options available in GlyphWorks – both manual and automated – including:
- Removal of dead time
- Conditional triggering – for example, find and remove times when vehicle speed is below a threshold
- Spike correction or removal
Originally presented: March 19, 2013
Test Data Analysis for Aerospace
Aerospace engineers are challenged with maintaining the reliability, safety and robust operation of aircraft and equipment. These engineering challenges are broad in scope, ranging from managing vibration to predicting and extending product life to quickly validating new designs.
In this webinar, we will demonstrate how powerful data processing software, nCode GlyphWorks, is designed to meet these needs, with specific application to durability, fatigue, and vibration analysis.
- Creating accelerated shaker profiles for product validation testing
- Analysis of fatigue life, including crack initiation and crack growth
- Analysis of vibration, including rotating machinery
- Aircraft structural health monitoring
- Quickly process large amounts of data
- Directly read and write many industry formats
- Create standardized processes that can be controlled and distributed
- Integration of MATLAB and GlyphWorks to develop custom data processing capabilities
Applications include airframe, engine, and landing gear.
Originally presented: Wednesday, December 12, 2012
Accelerated Testing for Shaker Table Tests
A shaker table test can prove the durability of a component that sees vibration loading. But how do you create the shaker profile? How do you compare this to an existing test spec?
Originally presented: Wednesday, October 10, 2012
How to Reproduce Engine Vibrations on Shaker Tables
Engine- or gear box-mounted components are submitted to loads coming from both the rotating machinery and the road profile. This vibratory mechanical environment is traditionally defined as swept sines or random profiles. In this webinar, we will present a methodology which enables to you to superimpose swept sines and a power spectral density of acceleration to optimize and accelerate the durability tests of such components.
Originally presented on March 20, 2012
Optimized Testing for Proving Grounds using nCode 7
Proving grounds are an extremely efficient means of qualifying the durability of vehicle components. They accelerate damage accumulation rates so failures are detectable in a very short period of time. It is important that proving ground damage is correlated with target customer usage. It is also important to determine the most efficient use of the proving ground in order to meet project targets and minimize overall development costs. This webinar describes the latest techniques for proving ground correlation and optimization available in nCode GlyphWorks.
Originally presented: March 3, 2011
Using MATLAB for Customized Scripting in nCode GlyphWorks
The Scripting Glyph now enables the MATLAB® programming language to be used in an nCode process. This webinar will highlight this new feature and demonstrate some of the benefits of having the mathematical capabilities of MATLAB in nCode GlyphWorks 7.
Originally presented: February 24, 2011
Customizing GlyphWorks using Python Scripting
Python scripting provides a very flexible and powerful method of adding new or proprietary functionality to nCode GlyphWorks. Some tasks require custom programming such as reading or writing new file formats or using a calculation that is specific to your company and this is where Python scripting has major benefits.
This webinar shows through several examples how the Scripting glyph can be used to rapidly create and implement your own glyphs.
Even if you have never used the Scripting glyph before, this webinar is a good place to start!
Originally presented: March 30, 2010
Helicopter - Shock & Vibration Qualification of Equipment
This webinar reviews the source of vibration loading on a helicopter and describes standard qualification tests that are used to ensure the safe life of equipment on the aircraft. It describes how the vibration environment can be measured in terms of a Fatigue Damage Spectrum (FDS) and Shock Response Spectrum (SRS). These spectra are calculated from measured flight load data as well as from the vibration test. By comparing the flight spectra with the test spectra, the paper shows how highly optimized vibration tests are derived.
Although the paper deals specifically with helicopters, these techniques are now common in all industries, including: ground vehicles, offshore, power generation and electronics.
Originally presented: December 2, 2009
Equivalent Damage Block Cycle Test with nCode GlyphWorks
Block cycle testing is a common method of component durability validation. It relies on the concept of equivalent fatigue damage to condense complicated service loads into a simple set of cycles that can be easily reproduced in the test lab.
Watch this webinar to learn how nCode GlyphWorks software can be used to easily create an equivalent damage block cycle test. We’ll discuss some of the common requirements of a block cycle test, and tips and tricks that can improve the accuracy of the test profile.
Originally presented: November 5, 2009
Webinars are free presentations about nCode products and technologies that are delivered by fatigue and durability experts of HBM Prenscia.
Live web-based presentations utilize WebEx, an interactive tool which allows the speaker to walk through examples in real time. Information for joining the live presentation with audio will be provided to you by email prior to the program date.
Browse through the list of archived webinar topics to stream or download a recorded presentation to watch at your convenience.
Visit back often to see the schedule of live, web-based presentations.