【作者】 马文锁； 张建中； 苏冰； 冯伟；

【Author】 MA Wen-suo~1 ZHANG Jian-zhong~2 SU Bing~1 FENG Wei~3 (1.School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China; 2.School of Mechatronics Engineering,Shandong University of Science and Technology,Taian 271021,China; 3.Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai 200072,China)

【机构】 河南科技大学机电工程学院； 山东科技大学机电工程学院； 上海大学上海市应用数学和力学研究所；

【摘要】 用可变微单元几何模型对管状三维编织复合材料的物理性能分析的结果,建立基于 Voight 等应变假设的混合率细观力学模型,对复合材料管的弹性力学性能进行预测．将纱线的正轴刚度通过转换得到其离轴刚度,用混合法得到材料的等效刚度矩阵和柔度矩阵, 获得复合材料等效弹性性能参数是随坐标变化的函数．举例说明了三维编织复合材料管的弹性性能及其变化规律,为其用于承载结构设计研究提供理论依据．更多还原

【Abstract】 The meso-mechanical model based on the‘Voight’rule of mixture is used in the course of prediction on elastic mechanical properties of 3D braided composites tube by the physical properties which were analyzed with the variable micro-structural unit-cell geometrical model.The yam Off-Axis rigidities are obtained through transferring the On-Axis rigidities;the equivalent rigidity and compliance matrix are archived through the rule of mixture.Composites equivalent elastic parameters are some functions varying with coordinates through its compliance matrix.The elastic performances of the 3D braided composites tube and their varied tendency are obtained.It is a theoretical foundation when composites tube is regarded as structural components.更多还原