Fang Huiyu, Zheng Quanshui. Anisotropic Effects of Quasi-Isotropic Composites(Ⅱ)──Applications and Micro-Nlechanical Analysis[J]. Applied Mathematics and Mechanics, 1996, 17(10): 877-882.
 Citation: Fang Huiyu, Zheng Quanshui. Anisotropic Effects of Quasi-Isotropic Composites(Ⅱ)──Applications and Micro-Nlechanical Analysis[J]. Applied Mathematics and Mechanics, 1996, 17(10): 877-882.

# Anisotropic Effects of Quasi-Isotropic Composites(Ⅱ)──Applications and Micro-Nlechanical Analysis

• Publish Date: 1996-10-15
• Up to now the analysis on aisnotropic effects of quasi-isotropic composites to material structures has not been found in literatures. In the present paper the strength model for triaxial woven materials proposed in Part (I)[1] is applied to study the problems of an infintiely large plate of triaxial woven material containing either an either an elliptic hole or a crack. To the elliptic hole problem the remote coritical loading as a function of the geometric parameters of woven materials is analysed and to the crack problem, the cracking orientation is examined. Finally the elasticity and strength models for a triaxial woven material proposed in Part (I) are verfied in terms of micromechanical analysis.
•  [1] 郑泉水、方辉宇,准各向同性复合材料刚度和强度的各向异性效应(I)—模型,应用数学和力学.17(10)(1996),869-878. [2] A.Fujita,H.Humada and Z.Maekawa,Tensile properties of carbon fibre triaxial woven fabric composites,J.Composite Materials,27 (1973),1428-1442. [3] 张行主编,《高等弹性力学》,北京航空航天大学出版社(1994). [4] 范天佑,《断裂力学基础》,江苏科学技术出版社(1978). [5] 尹双增,《断裂、损伤理论和应用》,清华大学出版社(1992). [6] R.B.Pipes and B.W.Cole,On the off-axis strength test for anisotropic materials,J.Composite Materials,7 (1973),246-256. [7] S.R.Swanson and B.C.Trask,Strength of quasi-isotropic laminates under off-axis loading,Comp.Sci.& Tech.,34 (1989),19-34. [8] S.R.Swanson and M.Nelson,Failure properties of crabon/epoxy laminates under tension-compression biaxial stress,in Proc.3rd Japan-US Conf.on Comp.Mater.,Tokyo(1986). [9] S.R.Swanson,M.Messick and Z.Tian,Failure of carbon/epoxy laminates under combined stresses,J.Comp.Mater.,21 (1986),619-630. [10] T.W.Chou and F.K.Ko,Textile Structural Composites,Elsevier Science Publishing Company,Inc.(1989),357-365.

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