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FEM simulation to estimate crashworthiness of automotive steel parts
Published May 23, 1999 by SAE Australasia in Australia
Finite element modeling based on experimental stress-strain relationships was applied to the FEM simulation to estimate the crashworthiness of automobile steel parts. Compared with the results of dynamic crash tests using hat-square-column-type specimens made of 300-590 Mpa-grade steels, the accuracy of the FEM simulation was evaluated for various modeling methods. It was revealed that the modeling of corner radius and strain rate sensitivity of materials played an important role in predicting the actual dynamic deformation process and the force-stroke relationship.