基于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.
参考文献
[1] | Zweben C. An approximate method of analysis for notched unidirectional composites. Eng Fract Mech, 1974,6:1~10 |
[2] | Fukunaga H, Chou T W, Fukuda H. Probabilistic strength analyses of interlaminated hybrid composites. Comp Sci Tech, 1989,35:331~345 |
[3] | Hedgepeth J M. Stress concentrations in filamentary structures. NASA, TN D-882,1961 |
[4] | Zeng Q D. A random critical-core theory of microdamage in interply hybrid composites: Ⅱ--ultimate failure. Comp Sci Tech, 1994,52:481~487 |
[5] | Manders P W, Bader M G. The strength of hybrid glass/carbon fiber composites. J Mater Sci, 1981, 16:2233~2245 |
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