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一种新型仿生型防刺服的基板设计与防刺机理探究

本站小编 Free考研考试/2021-12-21

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一种新型仿生型防刺服的基板设计与防刺机理探究
Substrate Design and Stab-Resistant Mechanism of a New Type of Bionic Stab-Resistant Clothing
投稿时间:2019-06-20
DOI:10.15918/j.tbit1001-0645.2019.175
中文关键词:防刺服三棱锥结构钛合金个体防护
English Keywords:stab-resistant clothingtriangular pyramidal structuretitanium alloyindividual protection
基金项目:国家自然科学基金资助项目(51606011)
作者单位
袁梦琦北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081
郭亚鑫北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081
钱新明北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081
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中文摘要:
为进一步开发出轻质有效的个体防刺装备,本文借鉴自然界的生物装甲模型,设计出一种类似三棱锥结构的仿生型防刺基板.前期通过刀具冲击基板的数值模拟和实验测试,探究了三棱锥结构防刺基板的抗冲击行为及防刺机理,并得到了最优的结构设计.由于三棱锥结构对刀具的冲击力具有分散作用,避免了冲击动能的集中破坏,使得三棱锥结构比平板的防刺性能要高得多.通过采用具有优异冲击韧性的改进型钛合金(TC611)材料制作的三棱锥防刺基板最佳角度为22.5°,最佳厚度为1 mm.采用新型铆接方式设计并制造的整体防刺层通过了警用防刺服GA 68-2008的刀具冲击测试.相比现有的大部分防刺服,该种防刺服更能有效抵御刀具的冲击,且重量轻、制作周期短,具备较高的可穿戴性.
English Summary:
To further develop lightweight and effective individual stab-resistant equipment, this study drew on the biological armor model of nature to design a bionic stab-resistant substrate with a triangular pyramidal structure. Numerical simulations and experimental testing of a knife impacting a substrate were used to study the impact-resistance behavior and stab-resistance mechanism of a triangular pyramidal stab-resistant substrate, and an optimal structural design was thus obtained. Because the triangular pyramidal structure had a dispersing effect on the knife impact force, the material could avoid the concentrated damage by the impact kinetic energy, giving the triangular pyramidal structure a much higher stab resistance than a comparable flat plate. The optimal angle of the triangular pyramidal stab-resistant substrate produced from a modified titanium alloy (TC611) material with excellent impact toughness was found to be 22.5° and the optimal thickness 1 mm. A full stab-resistant layer designed and manufactured using a new riveting method passed the knife impact test for police stab-resistant clothing in line with the GA 68-2008 standards. This clothing works more effectively against the impact of a knife, being lightweight, and having a shorter manufacturing cycle, and higher wearability.
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