破碎载荷下混合材料b柱的设计优化

IF 2.4 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Testing Pub Date : 2023-11-15 DOI:10.1515/mt-2023-0069

İsmail Öztürk

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引用次数: 0

摘要

b柱是侧翻事故中重要的结构部件。本研究通过仿真结果，比较了采用B1500HS-T25、AA2024-T351和AA6061-T6材料设计的均质b柱和采用其组合设计的混合b柱在破碎载荷作用下的吸能性能。利用上部B1500HS-T25和下部AA6061-T6混合型b柱进行了优化研究，两者吸能值最高。采用可行方向法进行单目标优化，b柱质量从2.736 kg降至2.117 kg，比参考b柱质量降低22.6%。采用全局响应搜索法和多目标遗传算法求解多目标优化问题。采用最小质量的b柱，两种方法的质量值均从2.736 kg下降到2.052 kg，降幅达25%。该优化混合动力b柱可用于汽车设计。

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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Design optimization of hybrid material B-pillar under crush loading

Abstract B-pillars are vital structural components in rollover-related accidents. In this study, the performances of homogeneous B-pillars designed from B1500HS-T25, AA2024-T351, and AA6061-T6 materials and hybrid B-pillars designed from their combinations under crushing load were compared in energy absorption using simulation results. Optimization studies were conducted utilizing the upper part B1500HS-T25 and lower part AA6061-T6 hybrid B-pillar, which gave the highest energy absorption value. Method of feasible directions was utilized to solve the single-objective optimization, and B-pillar mass decreased by 22.6 % from 2.736 to 2.117 kg compared with the reference B-pillar. Global Response Search Method and Multi-Objective Genetic Algorithm were used to solve the multi-objective optimization problem. B-pillar with min mass decreased mass value by 25 % from 2.736 to 2.052 kg for both methods. This optimum hybrid B-pillar can be utilized in car design.

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来源期刊

Materials Testing 工程技术-材料科学：表征与测试

CiteScore

4.20

自引率

36.00%

发文量

165

审稿时长

4-8 weeks

期刊介绍： Materials Testing is a SCI-listed English language journal dealing with all aspects of material and component testing with a special focus on transfer between laboratory research into industrial application. The journal provides first-hand information on non-destructive, destructive, optical, physical and chemical test procedures. It contains exclusive articles which are peer-reviewed applying respectively high international quality criterions.