三维编织复合材料强度的数值预报  

Numerical Prediction of Strength for 3D Braided Composites

作　　者：卢子兴[1] 刘振国[1] 麦汉超[1] 陈作荣[1] 

机构地区：[1]北京航空航天大学飞行器设计与应用力学系

出　　处：《北京航空航天大学学报》2002年第5期563-565,共3页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金资助项目 (10 0 72 0 0 7)

摘　　要：在实验研究和有限元分析的基础上 ,提出了一种经验性强度失效判据 ,并利用刚度预报的模型和有限元分析的结果 ,进一步提出了强度预报的方法 .强度计算的结果表明Based on experimental investigation and finite element analysis (FEA) of braided composites, an empirical failure criterion of strength was proposed to meet the need of engineering application. A strength prediction method of 3D braided composites was introduced by using the model of modulus prediction and the results of FEA. Numerical calculation results indicate that the predicted strength of 3D braided composites agrees quite well with the results of tensile experiment.

关 键 词：失效判据 纤维强度 有限元分析 复合材料 力学性能 

分 类 号：TB33[一般工业技术—材料科学与工程]