层内混杂复合材料应力集中问题的研究

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基金项目: 国家自然科学基金资助项目(19902004);广东省自然科学基金

Study on Stress Concentrations in an Intraply Hybrid Composite Sheet

College of Traffic and Communications, South China University of Technology, Guangzhou 510640, P. R. China

摘要: 提出了一种合理、简便、精确的修正的剪滞模型.基于此模型,分析了受拉伸的层内混杂复合材料中某些纤维断裂后的应力重分布.结果表明,求得的应力集中因子与Fukuda和Chou的结果相当接近,从而证实了本文模型和方法的合理性和正确性.
- 层内混杂复合材料 /
- 剪滞分析 /
- 应力集中
Abstract: A reasonably, simply and accurately modified shear-lag model was proposed. Based on the model, the stress redistributions due to the failure of some fibers in an intraply hybrid composite under tension were analyzed. The results show that the present calculating stress concentration factors very coincide with Fukuda and Chou's results, thus verifying the reasonableness and correctness of the present model and methods.
- intraply hybrid composite /
- shear-lag analysis /
- stress concentration factor

[1]	Zweben C.Tensile strength of hybrid composites[J].J Mater Sci,1977,12(8):1325-1337.
[2]	Fukuda H,Chou T W.Stress concentrations in a hybrid composite Sheet[J].Trans ASME,J Appl Mech,1983,50(4a):845-848.
[3]	Ling L,Zeng Q D.Analysis of stress concentrations in unidirectional composites taking into account the tensile load in the matrix[J].Acta Mech Solida Sinica,1998,11(4):318-328.

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