Automated Beta Curve Development Using Parametric FEA
Abstract: Beta factors are often expressed as the superposition of the stress intensity factors (SIFs) of several simple cases. This can be a challenge for complex parts. New approach: Automated beta curve development using parametric finite element analysis (FEA).
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“Accurate and reliable stresses and Stress Intensity Factors are required for determination of static and residual strength and for crack growth analyses in analysis tools such as AFGROW. For some geometries, industry solutions are either insufficient or nonexistent. The geometry, applied forces, and crack shapes and dimensions must be modeled reasonably well to obtain useful engineering data. The p-version finite element software StressCheck® (ESRD, Inc., St. Louis, Missouri, USA) is used to demonstrate how accurate finite element solutions can lead to good quality engineering analysis.”