Axial crushing behaviour of the polyurethane foam-filled aluminum cylindrical tubes with shallow spherical caps (combined thin-walled structures) is studied both experimentally and numerically. Non-linear dynamic finite element analyses were carried out to simulate the quasi-static tests. Satisfactory agreements were generally achieved between the finite element model and experimental deformed shapes, load–displacements, fold lengths and specific energy absorptions. Influence of important parameters such as semi-apical angle, length of cylindrical and spherical caps, diameter and density of foam filler was discussed and the results highlight the advantages of using foam-filled shell of the combined geometry as energy absorber.
Axial crushing analysis of polyurethane foam-filled combined thin-walled structures: experimental and numerical analysis
International Journal of Crashworthiness ; 24 , 6 ; 632-644
2019-11-02
13 pages
Article (Journal)
Electronic Resource
English
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