Effects of Manufacturing Process in Crash Simulations

Jakub Šašek, Miloslav Pašek, Karel Beneš, Vojtěch Glac


This article describes an impact of a manufacturing, which can significantly change real parts behavior. The influence of technology process is neglected in regular simulations. However, advanced finite elements solvers make possible to involve themanufacturing process in final simulations. It brings distortions and initial distribution of stress and strain into simulations. The possibilities are demonstrated on a crash simulation of a simple box-beam, where stamping and welding processes and spring-back are considered. All mentioned operations are performed in Virtual Performance Solution. The effects of manufacturing process are discussed with a respect to common simulation practice at the end of the paper.


spot welds; Multi Model Coupling; chaining of simulations; manufacturing effects; FEM; crash

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