THE INFLUENCE OF RESIDUAL EFFECTS OF STAMPING ON CRASH RESULTS
The thickness changes and work hardening arising during the forming process are generally ignored in crash analysis. However, LS-DYNA offers a number of options for quantifying these effects. This paper sets out some recommended methods, and quantifies the effect of the forming process on crash response of a typical car of stamped steel construction. LS-DYNA can also be used for accurate stamping simulation, but in this study a one-step code was used, with the aim of finding the fastest method of generating and including the stamping data. The trade-off between the time taken and accuracy is examined.
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