热塑性玻璃纤维头盔服役性能分析与数值仿真  

Service performance analysis and numerical simulation of glass fiber thermoplastic helmets

作　　者：张向奎[1,2] 李昭 韩成祥 盈亮[1,2] 胡平[1,2] ZHANG Xiangkui;LI Zhao;HAN Chengxiang;YING Liang;HU Ping(School of Automotive Engineering,Dalian University of Technology,Dalian 116024,China;State Key Laboratory of Structural Analysis for Industrial Equipment(Dalian University of Technology),Dalian 116024,China)

机构地区：[1]大连理工大学汽车工程学院,辽宁大连116024 [2]工业装备结构分析国家重点实验室(大连理工大学),辽宁大连116024

出　　处：《材料科学与工艺》2023年第1期1-9,共9页Materials Science and Technology

基　　金：国家自然科学基金资助项目(11872017)。

摘　　要：为了探究复合材料特别是碳纤维、玻璃纤维在头盔产品上的应用,本文基于模压成型工艺,对热塑性连续玻璃纤维材料增强头盔的成型过程进行实验。探究复合材料头盔所使用层合板最佳铺层方案,并通过实验获得层合板的应力应变曲线。对比不同头盔的穿透、碰撞和刚度服役性能数据,并使用有限元软件LS-DYNA进行数值仿真计算,得到不同材料对头盔性能及质量的影响。使用ABAQUS软件对头盔模型进行拓扑优化,在保持头盔刚度性能基本不变的情况下,优化得到头盔的加强筋结构,以此减轻头盔表层厚度并实现轻量化。结果表明,相比于普通ABS材料的头盔,热塑性连续玻璃纤维头盔的质量减轻了14.6%、刚度提升了10.6%;含有加强筋结构的玻璃纤维头盔质量减轻了14.2%,刚度与普通ABS头盔保持一致,但更节约材料、性价比更高。复合材料头盔的综合性能相比普通ABS塑料头盔有显著提升。To explore the application of composite materials(especially carbon fiber and glass fiber),this paper studies the forming process of continuous glass fiber reinforced thermoplastic helmets based on the compression molding process.The best lamination scheme of the laminated plate used in the composite helmet was investigated,and the stress-strain curve of the laminated plate was obtained through experiments.The penetration,crash,and stiffness performance data of different helmets were compared,and the finite element software LS-DYNA was used for numerical simulation to obtain the effects of different materials on the performance and quality of helmets.The ABAQUS software was used to optimize the topology of the helmet model.Under the condition that the stiffness of the helmet was basically unchanged,the stiffener structure of the helmet was optimized to reduce the thickness of the helmet surface and realize lightweight.Results show that the mass of the continuous glass fiber reinforced thermoplastic helmet was reduced by 14.6%and the stiffness was increased by 10.6%compared with ordinary ABS helmet.The mass of the glass fiber helmet with stiffener structure was reduced by 14.2%,and the stiffness was consistent with that of the ordinary ABS helmet,but it saved more materials and had higher cost performance.The comprehensive performance of the composite helmet was significantly improved compared with that of ordinary ABS plastic helmet.

关 键 词：模压成型 头盔 服役性能实验 数值仿真 拓扑优化 

分 类 号：TB332[一般工业技术—材料科学与工程]