采用Pro/ENGINEER软件,绘制三维深角联Kevlar/环氧树脂(EP)装甲材料细观结构模型及弯曲压头模型,利用ANSYS Workbench分析材料在0.5mm弯曲位移载荷作用下材料、纤维和树脂的应力、应变分布情况。结果表明:材料承受弯曲载荷作用时,弯曲压头接触区域,材料最容易发生破坏;纤维起主要承担作用,树脂起辅助承担作用;材料的破坏形式主要为纤维断裂、树脂破碎及纱线与树脂的脱黏。
Using Pro/ENGINEER software,the mesoscopic structure model and bending head model of 3D deep angle joint Kevlar/epoxy resin (EP) armor material were drawed.The stress and strain distribution of the material,fiber and resin under the action of 0.5mm bending displacement load were analyzed by used ANSYS Workbench.The results shown that when the material was subjected to bending load,the material was most likely to be damaged when the bending indenter contacted the area.The fiber played a major role,and the resin played an auxiliary role.The material damage forms were fiber fracture,resin breakage,and yarn and resin debonding.
[1] 顾平.织物组织与结构学[M].上海:东华大学出版社,2010,146-149.
[2] 王鹏.变厚度三维机织物的制备与结构分析[D].上海:东华大学,2012.
[3] 高雄.基于不同三维机织结构的碳纤复合材料整体力学性能研究[D].上海:东华大学,2017.
[4] Yang Y F,Cheng X W.Investigation on energy absorption efficiency of each layer in ballistic armor panel for application in hybrid design[J].Composite Structures,2017,164:1-9.
[5] Aswani K B,Vikrant V C,Shuail A,et al.Ballistic impact response of Kevlar reinforced thermoplastic composites armors[J].International Journal of Impact Engineering,2016,89:1-13.
[6] 金利民.三维深角联机织复合材料三点弯曲疲劳性能与结构效应[D].上海:东华大学,2012.
[7] 马雷雷.三维机织正交结构复合材料抗冲击性能及其有限元分析[D].杭州:浙江理工大学,2010.
[8] 冯古雨,曹海建,王新月,等.三维角联锁机织复合材料剪切性能有限元分析[J].宇航材料工艺,2017,47(2):14-17.
[9] Tsai K H,Chiu C H,Wu T H.Fatigue behavior of 3D multi-layer angle interlock woven composite plates[J].Composites Sciences and Technology,2000,60(2):241-248.
[10] 曹淼,顾伯洪,孙宝忠.平纹铺层及三维深角联复合材料热氧老化后低速冲击及剩余弯曲性能[J].东华大学学报(自然科学版),2020,46(1):16-22,46.
[11] 吕丽华,黄耀丽,崔婧蕊.蜂窝状三维整体机织复合材料的弯曲性能及其有限元模拟[J].纺织学报,2017,38(11):56-60.
[12] 全国纤维增强塑料标准化技术委员会.GB/T 1449—2005纤维增强塑料弯曲性能试验方法[S].北京:中国标准出版社,2005:371-376.
[13] 王春霞,宋孝浜,金利民.三维角联锁机织复合材料三点弯曲破坏的有限元计算[J].纺织学报,2014,35(3):41-45.
[14] 许京荆.ANSYS Workbench结构分析与实例详解[M].北京:人民邮电出版社,2019,156-180.
[15] 栾坤.三维深角联机织复合材料弹道侵彻破坏细观结构尺度研究[D].上海:东华大学,2014.
[16] Cui F,Sun B Z.Fiber inclination model for finite element analysis of three-dimensional angle interlock woven composite under ballistic penetration[J].Journal of Composite Materials,2011,45(14):1499-1509.
基金资助
国家重点研发计划(2018YFC0810306);江苏省高校自然科学研究项目(18KJA430011);南通市应用基础研究(JC2019011)
PDF
