Experimental and numerical investigations on the energy-absorption of a bending-straightening structure

This paper introduces an energy-absorption structure which dissipates energy utilising the 'bending-straightening' process and the friction of a thin metal plate. Three repeated tensile tests were carried out to investigate the force and energy characteristics of the structure. Different l...

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Bibliographic Details
Published in:International journal of crashworthiness 2021-05, Vol.26 (3), p.309-321
Main Authors: Zhou, Di, Wang, Xianhui, Zhou, Yunbo, Sun, Xiaowang, Zhang, Jincheng
Format: Article
Language:English
Subjects:
Absorbers
Absorption
Bending
bending theory
bending-straightening deformation
Coefficient of friction
Energy
Energy-absorption
Friction
Loading rate
Mathematical models
Metal plates
Numerical models
Straightening
tensile force
Tensile tests
thin metal plate
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Summary:This paper introduces an energy-absorption structure which dissipates energy utilising the 'bending-straightening' process and the friction of a thin metal plate. Three repeated tensile tests were carried out to investigate the force and energy characteristics of the structure. Different loading methods and loading rates of the simulation were studied and the numerical model was verified. Furthermore, the effects of the metal plate thickness, width, the central distance of the structure and the friction coefficient on the energy-absorption of the absorber were studied systematically. The results show that the structure is of good test reproducibility and the loading process is steady. The stable tensile force (STF) and the dissipated energy increase with the rising of the structural parameters significantly. With some of the engineering improvements, the absorber can be implemented in the seat anti-impact structure and this work can provide guidelines for the design and analysis for engineering applications.
ISSN:1358-8265
1754-2111
DOI:10.1080/13588265.2019.1709337