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Residual effects of metal forming: Their effect on crash results
Technical Paper
2001-06-0148
Sector:
Language:
English
Abstract
The thickness changes and work hardening arising during the
forming process are generally ignored in crash analysis. This paper
quantifies the effect of the forming process on crash response of a
typical car of stamped steel construction using an analytical
study.
Forming results for fourteen panels of a medium-sized car were
calculated using a one-step stamping analysis code. These were
imported into the crash model, and crash results compared with and
without the forming effects. The time taken to generate the forming
data by a variety of methods is quantified, and the trade-off
between the time taken and accuracy is examined. An efficient
method of importing the forming data into the crash model is
presented.