Title: Crashworthiness analysis in the automotive industry

Authors: K. Schweizerhof, L. Nilsson, J.O. Hallquist

Addresses: Department of Structural Mechanics, University of Karlsruhe, Karlsruhe, Germany. ' Department of Mechanical Engineering, Linkoping University, Linkoping, Sweden. ' Livermore Software Technology Corp., Livermore, USA

Abstract: Computer simulation of crash events has become a valuable and necessary tool in the design and improvement of automotive structures for better crashworthiness behaviour. Crashworthiness analysis has evolved through rapid improvements in computer technology, as well as through theoretical improvements in solid mechanics concerning large deformation dynamics and contact. Significant applications involve full car analysis such as frontal, rear, and side impact, as well as the analysis of components such as longitudinal beams, steering wheel systems, knee bolsters, seat belts and airbag-dummy interaction. The theoretical background needed in crashworthiness analysis is outlined. Current capabilities are shown on real applications; limitations and future technologies are discussed.

Keywords: vehicle impact; crashworthiness simulation; dynamics; finite element method; FEM; large deformation; occupant safety systems; vehicle safety.

DOI: 10.1504/IJCAT.1992.062598

International Journal of Computer Applications in Technology, 1992 Vol.5 No.2/3/4, pp.134 - 156

Available online: 10 Jun 2014 *

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