材料科学与工程学报2018，Vol.36Issue(3)：386-391,380,7.DOI:10.14136/j.cnki.issn1673-2812.2018.03.008
短纤维增强橡胶复合材料热应力及热-结构耦合的数值研究
Numerical Study on the Thermal Stress and Thermal-Structural Coulping for Short Fiber Reinforced Rubber Composites
摘要
Abstract
Based on the rubber's characteristic of non-linearity and non-compressibility ,the mesoscopic numerical model was established .With the non-linear finite element method ,the stress transfer and the effect of microparameters on the stresses and effective modulus of composites have been studied when the materials were subjected to the thermal loadings and thermal-structural loadings .One can conclude that ,in the case of thermal loadings ,the adhesion between rubber and fiber is reinforced because of the compressive stress at the interface ,while the debonding is more likely to occur at the end of the fiber .In the case of thermal-structural loadings ,the stress is a linear combination of thermal stress and structural stress . As the temperature increases ,the probability of debonding failure at the interface increases while the probability of fiber breakage reduces .Besides ,if the thermal stress exists ,the effective modulus of composite will experience a sudden drop .关键词
橡胶/短纤维/非线性有限元/热应力/有效模量Key words
rubber/short fiber/nonlinear finite element/thermal stress/effective modulus分类
数理科学引用本文复制引用
高剑虹,陈佳彬..短纤维增强橡胶复合材料热应力及热-结构耦合的数值研究[J].材料科学与工程学报,2018,36(3):386-391,380,7.基金项目
福建省教育厅中青年教师教育科研资助项目(JA14269) ,泉州师范学院校自选资助项目(2014KJ12) （JA14269）
