Topic
Crashworthiness
About: Crashworthiness is a research topic. Over the lifetime, 3857 publications have been published within this topic receiving 44051 citations.
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TL;DR: In this paper, a comprehensive approach for predicting failure in a component based on macroscopic strains and stresses is presented, which requires the use of a number of different failure mechanism representations, such as necking and local instabilities, as well as ductile and shear fracture.
Abstract: A correct representation of the plastic deformation and failure of individual component parts is essential to obtaining accurate crashworthiness simulation results The aim of this paper is to present a comprehensive approach for predicting failure in a component based on macroscopic strains and stresses This approach requires the use of a number of different failure mechanism representations, such as necking (due to local instabilities), as well as ductile and shear fracture All failure criteria have been developed in a way to include the influence of non-linear strain paths The effectiveness of this approach in predicting failure is then discussed by comparing numerical results with test data by three point bending and axial compression tests of double chamber extrusion components All studies presented in this paper were carried out on extrusions made from aluminium alloy EN AW-7108 T6
550 citations
TL;DR: In this article, an overview of the use of aluminium alloys in passenger cars is presented, and advances concerning multi-material light weight design are presented by examples for aluminium solutions in advanced "Multi-material” Super-Light-Car (SLC) concepts, which reaches significant mass reductions.
515 citations
TL;DR: In this article, the authors used a multiquadric response surface (MRSM) and a radial basis function (RBF) for multiobjective optimization of a vehicle body in frontal collision.
415 citations
TL;DR: In this article, a comprehensive overview of the recent developments in the area of crashworthiness performance of thin-walled (TW) tubular components is given with a special focus on the topics that emerged in the last ten years such as crashworthiness optimisation design and energy absorbing responses of unconventional TW components including multi-cells tubes, functionally graded thickness tubes and functionally graded foam filled tubes.
Abstract: Over the past several decades, a noticeable amount of research efforts has been directed to minimising injuries and death to people inside a structure that is subjected to an impact loading. Thin-walled (TW) tubular components have been widely employed in energy absorbing structures to alleviate the detrimental effects of an impact loading during a collision event and thus enhance the crashworthiness performance of a structure. Comprehensive knowledge of the material properties and the structural behaviour of various TW components under various loading conditions is essential for designing an effective energy absorbing system. In this paper, based on a broad survey of the literature, a comprehensive overview of the recent developments in the area of crashworthiness performance of TW tubes is given with a special focus on the topics that emerged in the last ten years such as crashworthiness optimisation design and energy absorbing responses of unconventional TW components including multi-cells tubes, functionally graded thickness tubes and functionally graded foam filled tubes. Due to the huge number of studies that analysed and assessed the energy absorption behaviour of various TW components, this paper presents only a review of the crashworthiness behaviour of the components that can be used in vehicles structures including hollow and foam-filled TW tubes under lateral, axial, oblique and bending loading.
406 citations
TL;DR: The energy absorption capability of a composite material is critical to developing improved human safety in an automotive crash as discussed by the authors, and energy absorption is dependent on many parameters like fiber type, m...
Abstract: The energy absorption capability of a composite material is critical to developing improved human safety in an automotive crash. Energy absorption is dependent on many parameters like fiber type, m...
351 citations