布立冈型螺旋纤维仿生复合材料动静态力学行为  

Static and Dynamic Mechanical Behaviors of Bouligand-type Biomimetic Composite Materials

作　　者：杨帆 秦子尚 李达诚 胡兆财 解维华[1] 孟松鹤[1] YANG Fan;QIN Zishang;LI Dacheng;HU Zhaocai;XIE Weihua;MENG Songhe(School of Astronautics,Harbin Institute of Technology,Harbin 150001,Heilongjiang,China;National Key Laboratory of Strength and Structural Integrity,Xian 10065,Shanxi,China;Zhiyuan Laboratory,Hangzhou 310000,China;Beijing Institute of Astronautical Systems Engineering,Beijing 100076,China)

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨150001 [2]强度与结构完整性全国重点实验室,陕西西安710065 [3]智元实验室,杭州310000 [4]北京宇航系统工程研究所,北京100076

出　　处：《兵工学报》2025年第2期254-264,共11页Acta Armamentarii

基　　金：国家自然科学基金(12302275);强度与结构完整性全国重点实验室开放基金(ASSIKFJJ202304003);智元实验室开放基金(ZYL2024009b)。

摘　　要：节肢动物外骨骼中发现的布立冈结构已被证实是提升其动态力学性能的关键。借助结构仿生概念开展纤维增强复合材料微结构设计有望为高性能航天材料提供创新解决途径与思路。通过制备不同构型的层合板材料,借助霍普金森压杆、力学试验机等试验技术对比研究了布立冈型仿生材料与准各向同性铺层材料的动静态力学行为。试验结果表明:随着应变率的提高(≮1850 s^(-1)),小螺旋角能够将其韧性提升至少17.4%;准静态压缩下其能量吸收能力达到21.25 J/g,相比准各向同性构型提升至少42.4%,这些都可以归因于布立冈构型试样所展出的塑性强化能力。落锤冲击仿真与试验结果进一步表明,仿生构型能够获得极佳的能量耗散与冲击防护特性。The Bouligand structure found in arthropod exoskeletons had been shown to be the key factor to improving their dynamic mechanical properties.It is expected to provide innovative solutions and ideas for high-performance aerospace materials by designing the microstructure of fiber reinforced composites(CFRP)with the help of the concept of structural bionics.In this paper,the dynamic and static mechanical behaviors of Bouligand-type biomimetic materials and quasi-isotropic laminated materials are studied by means of SHPB and mechanical testing machine.The experimental results show that,with the increase of strain rate(≮1850 s^(-1)),the toughness of can be improved by at least 17.4%at a small helical angle,and the energy absorption capacity under quasi-static compression reaches 21.25 J/g,which is improved by at least 42.4%compared with the quasi-isotropic configuration,all of which can be attributed to the plastic strengthening ability of Bouligand configuration specimen.The simulated and test results of drop weight impact further show that the bionic configuration can obtain excellent energy dissipation and impact protection characteristics.

关 键 词：仿生复合材料 布立冈结构 霍普金森压杆试验 结构仿生 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程] TP18[自动化与计算机技术—控制理论与控制工程]