Universiti Teknologi Malaysia Institutional Repository

Energy absorption assessment of conical composite structures subjected to quasi-static loading through optimization based method

Nia, A. B. and Nejad, A. F. and Xin, L. and Ayob, A. and Yahya, M. Y. (2020) Energy absorption assessment of conical composite structures subjected to quasi-static loading through optimization based method. Mechanics and Industry, 21 (1). ISSN 2257-7777

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Official URL: http://dx.doi.org/10.1051/meca/2019088

Abstract

The geometry of a composite frusta-conical structure with 20° apex angle was optimized using topology optimization method. The ATOM topology solver was used to perform optimization process. The structure was subjected to an axial compressive quasi-static loading where the criterion of optimization is the largest absorption of energy per unit volume. The optimization resulted in concave shell geometry with a volume reduction of 15%. To compare the effect of geometry on energy absorption capability, two types of GFRP specimen with different thickness were fabricated using filament winding and hand lay-up methods. The axial crushing test results were validated with numerical analysis using the commercial finite element software ABAQUS. The collapse mode and failure mechanism were investigated and identified. The presented methodology helps to find the better geometry instead of testing different geometries.

Item Type:Article
Uncontrolled Keywords:conical composite, crashworthiness, finite element analysis
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:93311
Deposited By: Narimah Nawil
Deposited On:19 Nov 2021 03:15
Last Modified:19 Nov 2021 03:15

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