期刊论文、会议论文

Zeng, Qingdun

中文

复合材料学报

1000-3851

1999

16

1

99-104

第十届全国复合材料学术会议

世纪之交复合材料的现状与发展

1998-09-01

上海

中国力学会<&wdkj&>中国复合材料学会<&wdkj&>中国宇航学会<&wdkj&>中国航空学会

10.3321/j.issn:1000-3851.1999.01.018

广东省自然科学基金

本校为第一且通讯机构

采用随机临界核理论，结合由剪滞模型得出的应力集中分析结果，对具有层间界面破坏的单向层间混杂叠层复合材料的最终拉伸破坏提出了一种细观统计理论；导出了计及界面剪切强度效应的强度分布函数和破坏准则；得到了最终拉伸强度与界面剪切强度的关系。结果表明，混杂复合材料的最终拉伸强度与界面剪切强度及混杂比存在某种优化匹配关系，而破坏应变是与现有的实验结果较为接近。

Microscopic statistical theory for the ultimate tensile failure of unidirectionally interlaminated hybrid composites with interface failure was proposed based on the random critical-core theory in conjunction with the results of stress concentration, which were obtained by a shear-lag model. A function of strength distribution and a failure criterion with the effect of interfacial shear strength were derived. A relationship between the ultimate tensile strength and interfacial shear strength was obtained. The results show that the ultimate strength of hybrid composites, interfacial shear stren...