摘要
研究了含二相粒子聚合物材料中粒子界面脱粘问题。首先提出了三维应力状态下具有非线性粘性效应的聚合物基体材料的本构关系;其次,对无限大聚合物基体中粒子-基体界面脱粘问题进行了分析,导出了求解界面脱粘临界时间的方程,并且给出了常应变条件下界面脱粘时间表达式;最后通过数值计算,讨论了界面脱粘临界时间的影响因素。计算结果表明:粒子尺度、加载速率、界面粘结能和非线性粘性参数对界面脱粘时间有重要的影响。
The interfacial debonding of particulate-reinforced polymeric material is studied in this paper. Firstly, a nonlinear viscoelastic model is proposed to describe the constitutive relation of the polymeric matrix. Then the interfacial debonding of a particle embedded polymeric matrix material is analyzed, and the equation for solving the critical debonding time is derived. The expression of the debonding time under the condition of linear loading history is obtained from the equation. Finally, the numerical calculation is carried out, and the numerical results indicate that the debonding time is significantly influenced by the particle size, loading rate, interfacial adhesive energy and nonlinear viscosity parameter.
出处
《航空材料学报》
EI
CAS
CSCD
2004年第5期35-39,共5页
Journal of Aeronautical Materials
基金
国家自然科学基金(10172074
10032010
10272005)
