颗粒增强复合材料热性能的数值模拟研究  

Numerical Simulation of Particle Reinforced Composites on Thermal Properties

作　　者：潘琼瑶[1] 贺鹏飞[1] 郑百林[1] 钱怡 

机构地区：[1]同济大学航空航天与力学学院,上海200092 [2]江南大学机械学院,无锡214122

出　　处：《太原理工大学学报》2005年第6期663-665,672,共4页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金资助项目(10472084)

摘　　要：利用C语言编写了能生成随机分布的颗粒增强复合材料几何模型的程序,结合MSC商用有限元软件分析了颗粒的体积分数、大小以及分布形态对颗粒增强复合材料热学性能的影响。结果表明:颗粒的分布形态对材料的热膨胀变形及热传导无明显影响,但对热应力有很大影响;颗粒的大小对材料的热膨胀有一定影响;颗粒体积分数的影响和利用混合律的预测结果基本一致。A numerical model for particles reinforced composites with random distribution of the particles was established by means of C^＋＋ Commercial finite element method package （MSC） was used to analyze the influence of the volume fraction, size and distribution pattern of the particles on the thermal properties of the composites. It was found that the distribution pattern of the particles had a remarkable effect on the thermal stresses, and very weak influence on the thermal expansion and thermal conductivity; the size of the particles can affect the thermal expansion of the composites; the influence of the volume fraction can be expected by the mix law.

关 键 词：复合材料 有限元法 颗粒增强复合材料 随机分布 热学性能 

分 类 号：TB301[一般工业技术—材料科学与工程]