Modeling of strain rate effects in automotive impact

Srdan Simunovic, Phani Kumar V.V. Nukala, James Fekete, David Meuleman, Marcio Milititsky

Research output: Contribution to journalConference articlepeer-review

12 Scopus citations

Abstract

This paper deals with the effects of various approaches for modeling of strain rate effects for mild and high strength steels (HSS) on impact simulations. The material modeling is discussed in the context of the finite element method (FEM) modeling of progressive crush of energy absorbing automotive components. The characteristics of piecewise linear plasticity strain rate dependent material model are analyzed and various submodels for modeling of impact response of steel structures are investigated. The paper reports on the ranges of strains and strain rates that are calculated in typical FEM models for tube crush and their dependence on the material modeling approaches employed. The models are compared to the experimental results from drop tower tests.

Original languageEnglish
JournalSAE Technical Papers
DOIs
StatePublished - 2003
Event2003 SAE World Congress - Detroit, MI, United States
Duration: Mar 3 2003Mar 6 2003

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