新型梯度标签形分形薄壁结构设计及耐撞性分析

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design Pub Date : 2025-05-09 DOI:10.1016/j.matdes.2025.114076

Jiale Huang , Haoke Zhou , Wenqi Huang , Yuxin Zhang , Guoda Du , Wentian Lu , Xinmei Xiang , Jingren Gou

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引用次数: 0

摘要

受生物体的分形和层次特征的启发，提出了一种新的标签形分形结构（#-FS），并通过有限元仿真分析了其耐撞性能。结果表明，在相同质量条件下，与传统方管相比，本文提出的#-FS具有更好的吸能能力。在相同质量下，与常规方管相比，3级fs的吸能提高216.36%，峰值压溃力（PCF）降低0.24%。最后，系统研究了壁厚梯度(k)对#-FS和标签形梯度分形核心结构（#-GFS-k-SW）耐撞性能的影响。

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Design and crashworthiness analysis of novel gradient hashtag-shaped fractal thin-walled structure

Inspired by the fractal and hierarchical features of organisms, a novel hashtag-shaped fractal structure (#-FS) was proposed, and its crashworthiness performance was analyzed using finite element simulations. The results show that the proposed #-FS exhibits superior energy-absorbing capacity compared to the conventional square tube under the same mass condition. Compared with conventional square tube, the energy absorption of #-FS with 3rd level increases by 216.36 % and its peak crush force (PCF) decreases by 0.24 % at the same mass. Finally, the effects of the wall thickness gradient (k) on the crashworthiness performance of #-FS and the hashtag-shaped gradient fractal core structure (#-GFS-k-SW) were systematically investigated.

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来源期刊

Materials & Design Engineering-Mechanical Engineering

CiteScore

14.30

自引率

7.10%

发文量

1028

审稿时长

85 days

期刊介绍： Materials and Design is a multi-disciplinary journal that publishes original research reports, review articles, and express communications. The journal focuses on studying the structure and properties of inorganic and organic materials, advancements in synthesis, processing, characterization, and testing, the design of materials and engineering systems, and their applications in technology. It aims to bring together various aspects of materials science, engineering, physics, and chemistry. The journal explores themes ranging from materials to design and aims to reveal the connections between natural and artificial materials, as well as experiment and modeling. Manuscripts submitted to Materials and Design should contain elements of discovery and surprise, as they often contribute new insights into the architecture and function of matter.