新型复合材料几何结构对宏观力学性能的影响  

On the Relationship Between Microstructural Characteristic and Mechanical Properties of Aligned Composits

作　　者：钱逸[1] 张康达[1] 何建波[1] 金杰[1] 柳增典 

机构地区：[1]浙江工业大学机电工程学院,杭州310032 [2]华东理工大学化机所,上海200213

出　　处：《浙江工业大学学报》1998年第2期128-134,共7页Journal of Zhejiang University of Technology

基　　金：国家自然科学基金

摘　　要：采用有限元法，建立了有关的单胞模型和相关的边界条件。并着重研究了复合材料的几何结构参数与单向不连续碳纤维增强热塑性树脂复合材料的细观弹塑性应力应变的关系，分析了纤维重叠比、纤维端部的不连续性对复合材料弹性模量和应力集中系数的影响。The micromechanical elastic-plastic behavior of the aligned discontinuou carbon fiber reinfored thermoplastic polymer composite was studied by mean of the finite element analysis . A investigation focused on the influence of the disconinuous characteristics of fiber ends on the stress field and microstructural characteritics . The concept of a typical unite unite Cell is introduced and the boundary condition for such unite cell, when the composite is imposed to a simple macroscopic loding, are dervied.

关 键 词：不连续纤维 聚醚醚酮 细观力学 有限元 

分 类 号：TB33[一般工业技术—材料科学与工程]