三维浅交弯联Kevlar/环氧树脂装甲材料弯曲性能的数值模拟  

Numerical simulation on bending property of Kevlar/EP armor material using 3D curved shallow-crossing linking weave

作　　者：王梦肖 时娟娟 沈文东 黄晓梅[1] 曹海建[1] Wang Mengxiao;Shi Juanjuan;Shen Wendong;Huang Xiaomei;Cao Haijian(School of Textile and Clothing,Nantong University,Nantong 226019;Jiangsu Jonnyma New Materials Co.,Ltd.,Nantong 226400)

机构地区：[1]南通大学纺织服装学院,南通226019 [2]江苏锵尼玛新材料股份有限公司,南通226400

出　　处：《化工新型材料》2021年第12期161-164,170,共5页New Chemical Materials

基　　金：江苏省高校自然科学研究重大项目(18KJA430011);江苏省大学生创新训练项目(202010304101Y);江苏省先进纺织工程技术中心开放基金重大项目(XJFZ/2018/02);南通大学纺织服装学院研究生自主创新项目(FZ201901)。

摘　　要：为了探究三维浅交弯联芳纶1414纤维增强环氧树脂(Kevlar/EP)装甲材料在弯曲载荷下的力学响应,借助Pro/Engineer绘图软件,建立材料及弯曲压头的几何结构模型;利用ANSYS有限元软件,分析材料在0.5mm弯曲位移载荷下的力学响应。结果表明,当三维浅交弯联Kevlar/EP装甲材料长度尺寸较小时,材料在弯曲载荷作用下,剪切破坏是导致材料失效的主要因素。在剪切位置处,经纱、纬纱的应力分布均为:上层>中间层>下层。经纱起主要承载作用,纬纱次之,树脂只起辅助作用。材料破坏的主要模式是树脂的碎裂、纤维与树脂的严重脱粘等。In order to explore the mechanical response of Kevlar/EP armor materials using 3 D curved shallow-crossing linking weave under bending load,the geometric structure model of the materials and bending head was established by using Pro/Engineer drawing software.ANSYS finite element software was used to analyze the mechanical response of the material under the bending displacement load of 0.5 mm.The results shown that when the length of Kevlar/EP armor materials using 3 D curved shallow-crossing linking weave was small,shear failure was the main factor leading to the failure of the material under the action of bending load.At the shearing position,the stress distribution of warp and weft was as follows:the upper layer>the middle layer>the lower layer.The warp played the main bearing role,the weft second,and the resin played the auxiliary role.The main failure modes of the materials were resin fragmentation,fiber and resin serious debonding and so on.

关 键 词：Kevlar/EP装甲材料 三维浅交弯联 弯曲性能 数值模拟 破坏模式 

分 类 号：TS151[轻工技术与工程—纺织材料与纺织品设计]