This discussion focuses on simulating residual stress effects in ANSYS, specifically addressing inelastic analysis using the Multilinear Kinematic model. Participants emphasize the importance of defining material properties accurately and performing thermal expansion/contraction analyses for welding processes. The conversation highlights the necessity of understanding the type of residual stress—whether from loading, repeated loading, or welding—to effectively model its impact on structural integrity. Key techniques include examining LCF curves to assess material life under cyclic loading conditions.
PREREQUISITESEngineers, researchers, and analysts involved in structural integrity assessments, particularly those working with ANSYS for simulating residual stresses from loading, welding, or machining processes.
minger said:Ah, that's much better. Then the residual stress is due to stresses above yield strength of the material.
See my post above for an inelastic analysis. Typically, you will run one cycle, and examine the stresses/strains and look on LCF curves or the like to determine life.