Author(s)

S. Keith & M. Maier

Abstract

Invited Paper Numerical simulation of the crashing of composite tubes S. Keith, M. Maier Institute for Composite Materials, University of Kaiser slant ern, 67663 Kaiserslautern, Germany ABSTRACT It has been found that the energy absorption behavior of composite tubes under uniaxial crash load is much better compared to those of steel or aluminum. Within a EUREKA research project (CARMAT 2000) such elements were investigated at BASF AG (Ludwigshafen). The major goal was to develop an easy replaceable crash element for low velocity impact. The use of special energy absorbing composite parts in crashworthiness application requires detailed knowledge about the force vs. time, force vs. deformation and absorbed energy vs. deformation behavior. The present paper gives a brief survey of basic material models for composites crash analysis which have been implemented into the FE-Code DYNA3D. Main goal of crashworthiness calculations is to reduce the number of expensiv

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