Numerical simulation and multi-objective optimization of thin-walled aluminum/carbon fiber reinforced plastic hybrid tubes under axial crushing

IF 3.6 4区材料科学 Q2 MATERIALS SCIENCE, COMPOSITES

Journal of Thermoplastic Composite Materials Pub Date : 2024-03-07 DOI:10.1177/08927057241238204

Chao Zhang, Yunyun Sun, Jose L Curiel-Sosa, Kai Qiao

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Abstract

Crushing behavior analysis and energy absorption optimization are crucial for lightweight structures in automotive applications. The present paper aims to investigate the crushing behavior of thin-walled aluminum/CFRP hybrid tubes under axial loading using an explicit finite element (FE) simulation. The damage constitutive models of aluminum and CFRP are implemented by coding the user-defined subroutine VUMAT in ABAQUS/Explicit, which includes the damage initiation and evolution laws and element deletion scheme. Parametric studies are conducted to assess the effects of radius and aluminum layer thickness on the crushing performance of hybrid tubes. Additionally, a multi-objective optimization is performed on the Isight platform using a non-dominant sorting genetic algorithm (NSGA-II) and technique for order preference by similarity to ideal solution (TOPSIS) with entropy weight method. The optimization aims to maximize crashworthiness and increase energy absorption capacity, enabling designers to select an optimum size ratio.

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轴向挤压下薄壁铝/碳纤维增强塑料混合管的数值模拟和多目标优化

挤压行为分析和能量吸收优化对于汽车应用中的轻质结构至关重要。本文旨在利用显式有限元（FE）模拟研究薄壁铝/CFRP 混合管在轴向载荷作用下的挤压行为。铝和 CFRP 的损伤构成模型是通过在 ABAQUS/Explicit 中编码用户定义的子程序 VUMAT 实现的，其中包括损伤起始和演变规律以及元素删除方案。通过参数研究，评估了半径和铝层厚度对混合管挤压性能的影响。此外，还在 Isight 平台上使用非优势排序遗传算法 (NSGA-II) 和熵权法的理想解相似度排序偏好技术 (TOPSIS) 进行了多目标优化。优化的目的是最大限度地提高耐撞性和能量吸收能力，使设计人员能够选择最佳尺寸比。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Thermoplastic Composite Materials 工程技术-材料科学：复合

CiteScore

8.00

自引率

18.20%

发文量

104

审稿时长

5.9 months

期刊介绍： The Journal of Thermoplastic Composite Materials is a fully peer-reviewed international journal that publishes original research and review articles on polymers, nanocomposites, and particulate-, discontinuous-, and continuous-fiber-reinforced materials in the areas of processing, materials science, mechanics, durability, design, non destructive evaluation and manufacturing science. This journal is a member of the Committee on Publication Ethics (COPE).