Modelling self-piercing riveted joint failures in automotive crash structures

Wood, Paul and Schley, C.A. and Buckley, M.A. and Walker, B. and Dutton, T. (2008) Modelling self-piercing riveted joint failures in automotive crash structures. In: Proceedings of 10th Int. LS-DYNA Users’ Conference, 2008-06-08 - 2008-06-10.

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Abstract

This paper describes a new model and method to predict Self-Piercing Riveted (SPR) joint interlock failures in aluminium sheet at crash speeds using explicit finite element simulation. SPR interlock failure is dependent on rivet direction, which is included in the model. A mesh independent approach is adopted for connection model which is capable of industrial application at the full vehicle crash analysis level. The paper provides an overview of the approach to validate connection model; typically by developing detailed physics based models of various joint configurations supported with high speed experimental data, through to model capable of industrial application. The framework to validate connection model for use in crash simulation tools is expected to have broader application

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