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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

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