含预成型孔复合材料层合板的强度分析  

STRENGTH ANALYSIS OF COMPOSITE LAMINATES CONTAINING PREFORMED HOLE

作　　者：杨运民[1] 彭向和[1] 陈元强[1] 

机构地区：[1]重庆大学工程力学系,重庆400044

出　　处：《复合材料学报》1999年第4期85-89,共5页Acta Materiae Compositae Sinica

摘　　要：对生物结构的观测表明在孔口附近的纤维是连续绕过的，已有实验证明这种绕孔结构的强度比钻孔结构有显著提高。利用迭代设计方法得到单层板绕孔方案，在此基础上构成复合材料层合板，并对含预成型孔层合板在面内复杂载荷作用下的强度进行了分析，结果证实了该仿生结构具有较高的承载能力。From the observation of biological structure, it was found that the fiber changes its density and direction continuously when passing around a hole. Some experiments have demonstrated that the mechanical properties of this kind of structure were much better than those of a structure containing drilled or punched holes. An iteration method was proposed for the design of pre formed hole structure of a single ply. Then the mechanical property of the laminates consisting of this kind of ply was analyzed. Calculation showed that the obtained laminates have higher load carrying capability than the conventional ones.

关 键 词：复合材料 强度 结构仿生 层板 预成型孔 

分 类 号：TB330.1[一般工业技术—材料科学与工程]