橡胶帘线复合材料界面失效机制  

Interfacial Failure Mechanism of Rubber Cord Composites

作　　者：郭晓辉 袁晓静 张泽 刘广永[2] 邱贺方 崔帆帆 Xiaohui Guo;Xiaojing Yuan;Ze Zhang;Guangyong Liu;Hefang Qiu;Fanfan Cui(Combat Support Academy,Rocket Force University of Engineering,Xi’an 710025,China;Key Laboratory of Rubber-Plastics,Qingdao University of Science&Technology,Qingdao 266042,China)

机构地区：[1]火箭军工程大学作战保障学院,陕西西安710025 [2]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《高分子材料科学与工程》2022年第11期88-95,共8页Polymer Materials Science & Engineering

基　　金：军内科研(WG2020017)。

摘　　要：为研究对称角度铺设的橡胶帘线复合材料界面失效机制,采用有限元方法建立了代表性体积元,仿真橡胶帘线复合材料细观层面的应力分布,采用基于能量的Power-law准则仿真帘线与橡胶界面的损伤演化,发现界面的损伤由接触剪切应力与接触压力引起。界面初始刚度为影响界面损伤演化的重要粘接界面参数,初始刚度与界面损伤演化变量正相关。帘线夹角增大会引起帘线所受转矩增大,导致界面失效加剧。In order to study the interface failure mechanism of rubber cord composites laid at symmetrical angles,a representative volume element was established by the finite element method to simulate the stress distribution of the rubber cord composites at the mesoscopic level,and the energy-based Power-law criterion was used to simulate the damage evolution.The damage evolution of the cord/rubber interface shows that the interface damage is caused by contact shear stress and contact pressure.The initial interface stiffness is an important bonding interface parameter that affects the interface damage evolution,and the initial stiffness is positively correlated with the interface damage evolution variable.The increase in the included angle of the cord will cause the torque on the cord to increase,result-ing in aggravated interface failure.

关 键 词：橡胶/帘线 对称角度铺设 有限元 代表性体积元 内聚力接触 损伤演化 

分 类 号：TQ336[化学工程—橡胶工业]