层间混杂叠层复合材料的最终拉伸破坏(Ⅰ)应力集中分析

详细信息

ULTIMATE TENSILE FAILURE OF INTER LAMINATED HYBRID COMPOSITES (I) STRESS CONCENTRATION

College of Traffic and Communications, South China University of Technology, Guangzhou 510641

摘要

摘要: Zweben^[1]的剪滞假设, 提出一种修正的剪滞分析模型, 研究了层间混杂复合材料低延伸层的断裂、层间界面破坏及高延伸层中部分纤维断裂相互作用所导致的细观应力重分布, 讨论了层间界面破坏对高延伸纤维中的应力集中因子的影响, 为层间混杂叠层复合材料最终拉伸破坏的细观统计分析提供理论依据。
- 层间混杂复合材料 /
- 剪滞分析 /
- 界面破坏 /
- 细观应力集中
Abstract: On the basis of Zweben's shear lag assumptions, this paper proposes a modified shear lag model to study the micro stress redistributions induced by the interaction of the failures of the low elongation layer, interlaminated interface and some fibers in high elongation layers in interlaminated hybrid composites and to discuss the influence of interfacial failure on the stress concentration factors in high elongation fibers, and provides the theoretical basis for the micro statistical analysis for the ultimate tensile failure of interlaminated hybrid composites.
- interlaminated hybrid composites /
- shear lag analysis /
- interface failure /
- micro stress concentration