StressCheck Tutorial: Directional vs Follower Loads in Geometric Nonlinear Analysis
Abstract: Comparison between linear and geometric nonlinear solutions for direction and follower (normal) tractions. Follower loads will “follow” the deformation of the part in the geometric nonlinear solution.
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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.”