颗粒增强复合材料热膨胀系数预测模型的研究  

Research the Model of Predicting the Thermal Expansion Coefficient of Particle-reinforced Composites

作　　者：李燕[1] 卢平[1] 刘佐民[1] 

机构地区：[1]武汉理工大学机电工程学院,武汉430070

出　　处：《武汉理工大学学报》2009年第17期39-42,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50775168)

摘　　要：建立了不必区分基体相和增强相的复合材料的细观力学模型。利用该模型,采用热弹性力学方法,推导出了预测多相颗粒增强复合材料热膨胀系数的算式。将该算式应用于几个具体的实例,结果与试验数据、Turner模型和Kerner模型计算的结果比较,发现符合情况很好,证明了该算式的适用性以及模型建立的合理性。A microstructure model of particle-reinforced composites was proposed in the paper, without the need to distinguish base phase and reinforced phase. On basis of the model, a formula was established to predict the thermal expansion coefficient of multi-phase particle-reinforced composites by the method of thermodynamics. The thermal expansion coefficient so obtained shows good confomity with experimental data and results calculated by Turner and Kerner equations, which proved good applicability of the formula and reasonableness of the model.

关 键 词：颗粒增强复合材料 热膨胀系数 热应力 增强体含量 

分 类 号：TB33[一般工业技术—材料科学与工程] O34[理学—固体力学]