生物启发的蜂核心复合材料三明治结构的机械行为,以低速度动态加载
Tao Tao1, Lizheng Li2, Qiang He2
1Guangzhou Metro Design & Research Institute Co., Ltd., Guangzhou 510010, China.
Materials (Basel, Switzerland)
|March 13, 2024
概括
生物灵感的蜂三明治面板,模仿莲花叶脉,显示出更好的抗冲击能力. 与传统设计相比,这些面板减少了变形,并提高了能量吸收.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 生物模拟学是一种生物模拟学.
背景情况:
- 三明治板是关键的结构部件,但它们在低速度冲击下的抗冲击性能需要提高.
- 传统的六角蜂巢结构在能量吸收和变形管理方面存在局限性.
- 生物仿真为先进的材料特性提供了新的设计策略.
研究的目的:
- 使用莲花叶脉结构设计和评估一个生物灵感的蜂 (BIH) 三明治面板.
- 为了比较BIH三明治面板与传统六角蜂三明治面板的抗冲击性能.
- 调查结构参数对BIH三明治板冲击性能的影响.
主要方法:
- 使用ABAQUS.US开发和验证BIH三明治面板的有限元 (FE) 模型.
- 系统地比较机械性能,包括位移,变形模式和能耗.
- 参数研究对圆形直径比率 (γ),厚度比率 (K) 和冲击角 (θ) 的影响.
- 使用响应表面方法优化BIH三明治面板.
主要成果:
- 与六角蜂巢面板相比,BIH三明治面板显示最大后面面板变形减少了10.29%.
- 在BIH三明治面板中,塑料能耗增加了8.02%.
- 该研究显示,性能差异归因于不同的能量吸收机制.
结论:
- 生物灵感的蜂巢三明治面板与传统设计相比,提供了优越的抗冲击性能.
- 结构修改,如添加灵感来自莲花叶脉的墙壁,显著提高性能.
- 优化结构参数是最大限度地提高BIH三明治板的抗冲击能力的关键.
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