Ali Aziz, Ditho Pulungan, Afdhal, L. Gunawan, T. Dirgantara
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引用次数: 0
Abstract
This study aims to observe the crashworthiness performance of a double-hat column constructed from anisotropic sheet metals under axial impact conditions. The predicted crashworthiness parameters obtained from numerical simulations were compared with experimental data. Anisotropy was discerned through the examination of three material orientations. The effects of viscoplasticity were rigorously investigated under both quasi-static and dynamic loading conditions. Anisotropy notably exerted a pronounced influence on crucial metrics such as mean crushing force, maximum crushing force, and specific energy absorption. Furthermore, the viscoplastic behavior of the column substantially augmented the structural response, particularly under dynamic loading scenarios. Notably, the anisotropic-viscoplastic model exhibited superior accuracy compared to its isotropic counterpart, thereby underscoring its efficacy in capturing intricate material characteristics. This study underscores the critical significance of accounting for geometric imperfections to ensure precise predictions of deformation shapes and crashworthiness performance.
期刊介绍:
ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications.
The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.