单向短纤维增强复合材料应力传递模型及其细观力学分析  

Stress Transfer Model and Micromechanic Analyses of Unidirectional Single-short-fiber Composite

作　　者：孙开俊[1] 顾伯勤[1,2] 周剑锋[1] 黄星路[1] 

机构地区：[1]南京工业大学机械与动力工程学院,南京210009 [2]浙江国泰密封材料股份有限公司,杭州311255

出　　处：《材料导报》2011年第18期121-124,共4页Materials Reports

基　　金：国家自然科学基金(10872088);教育部博士点基金(20070291004);南京工业大学学科建设基金(39702010)

摘　　要：建立了含单纤维和基体的双圆柱复合材料细观力学模型,采用基体剪应力的Lame形式推导了纤维轴向应力和纤维基体间界面剪应力计算方程。分析了纤维/基体模量比、纤维长径比和纤维体积分数等细观结构参数对纤维轴向应力和界面剪应力分布的影响,并对结果进行了验证。A micromechanical two-cylinder model for fiber-reinforced composites consisting of fiber and matrix was established. The equations for calculating fiber axial stress and interracial shear stress were derived as functions of the fiber axial position by employing Lame form of shear stress in the matrix. The effects of micro-structure parameters such as fiber to matrix modulus ratio, fiber aspect ratio and volume fraction on the axial stress distribution and the interracial stress distribution were investigated. Furthermore, the results were validated.

关 键 词：短纤维复合材料 界面 应力传递 细观力学 

分 类 号：TB332[一般工业技术—材料科学与工程]