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Comparison of crash behaviour prediction of a car crash box using initial and updated finite element model

N. A. Z., Abdullah and M. S. M., Sani and Salwani, Mohd Salleh (2019) Comparison of crash behaviour prediction of a car crash box using initial and updated finite element model. In: Journal of Physics: Conference Series, 1st Colloquium on Noise, Vibration and Comfort, CNVC 2019, 7 March 2019 , Kelab Shah Alam, Selangor. pp. 1-10., 1262 (1). ISSN 1742-6588 (print); 1742-6596 (online)

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Abstract

Topic of crashworthiness is gaining popularity as vehicle safety is becoming main concern to the vehicle manufacturers worldwide. Due to this factor, energy absorbing members on vehicle such as crash box is researched by many which lead to various strategies of design optimization has been carried out in order to seek a good energy absorber on vehicle. Among the popular method of determining the crash performance of a structure is by using dynamic analysis in computational finite element model (FEM). However, since finite element analysis (FEA) is only an approximation method which in many cases can be less reliable, model updating method is often suggested to improve its reliability. This study seeks to investigate the crash behaviour of initial and updated crash box model. The velocity of impactor, the deformation, collapse distance and energy transferred to the two models of crash box are compared. The findings show that the initial and updated model of the crash box in this study, do have different crash behaviour. However, the difference level is relatively small. The investigation on the method of validation for the updated model in terms of crash behaviour is highly recommended.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Approximation methods; Crash performance; Energy absorbers; Energy absorbing member; Vehicle manufacturers; Crashworthiness
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Faculty/Division: Institute of Postgraduate Studies
Centre of Excellence: Automotive Engineering Centre
Centre of Excellence: Automotive Engineering Centre

Faculty of Mechanical & Manufacturing Engineering
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 13 Nov 2020 07:12
Last Modified: 13 Nov 2020 07:12
URI: http://umpir.ump.edu.my/id/eprint/29841
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