PROPERTY DEGRADATION OF ANISOTROPIC COMPOSITELAMINATES WITH MATRIX CRACKING(Ⅰ)──CONSTITUTIVE RELATION DEVELOPING FOR (θm/90n) CRACKED LAMINATES BY STIFFNESS PARTITION

Applied Mathematics and Mechanics (English Edition) ›› 1998, Vol. 19 ›› Issue (3): 279-287.

PROPERTY DEGRADATION OF ANISOTROPIC COMPOSITELAMINATES WITH MATRIX CRACKING(Ⅰ)──CONSTITUTIVE RELATION DEVELOPING FOR (θ_m/90_n) CRACKED LAMINATES BY STIFFNESS PARTITION

华玉¹, 王兴国¹, 郦正能²

1. Hebei Institute of Technology, Tangshan 063009, P. R. China;
2. Peking University of Aeronautics and Astronautics, Beding 100083, P. R. China

收稿日期:1995-12-29 修回日期:1997-12-15 出版日期:1998-03-18 发布日期:1998-03-18

PROPERTY DEGRADATION OF ANISOTROPIC COMPOSITE LAMINATES WITH MATRIX CRACKING (I)-CONSTITUTIVE RELATION DEVELOPING FOR (θ_m/90_n) CRACKED LAMINATES BY STIFFNESS PARTITION

Hua Yu¹, Wang Xingguo¹, Li Zhengneng²

1. Hebei Institute of Technology, Tangshan 063009, P. R. China;
2. Peking University of Aeronautics and Astronautics, Beding 100083, P. R. China

Received:1995-12-29 Revised:1997-12-15 Online:1998-03-18 Published:1998-03-18

摘要/Abstract

摘要： The study on property degradation of damaged composite laminates is extendedto anisotropic laminates with matrix cracking. In (I) of the paper, an idea of "stiffnesspatition" is proposed to deal with the puzzle that the in-plane normal response iscoupled with the shear response of the laminates. For (θ_m/90_n.), laminates containingtransversely cracked layers under general in-plane loading, the constitutive relationsare derived and the effective stiffnesses are expressed as the function of crack density.

关键词: composite laminate, anisotropy, damage, constitutive relation, stiffness partition

Abstract: The study on property degradation of damaged composite laminates is extendedto anisotropic laminates with matrix cracking. In (I) of the paper, an idea of "stiffnesspatition" is proposed to deal with the puzzle that the in-plane normal response iscoupled with the shear response of the laminates. For (θ_m/90_n.), laminates containingtransversely cracked layers under general in-plane loading, the constitutive relationsare derived and the effective stiffnesses are expressed as the function of crack density.

Key words: composite laminate, anisotropy, damage, constitutive relation, stiffness partition

华玉;王兴国;郦正能. PROPERTY DEGRADATION OF ANISOTROPIC COMPOSITELAMINATES WITH MATRIX CRACKING(Ⅰ)──CONSTITUTIVE RELATION DEVELOPING FOR (θ_m/90_n) CRACKED LAMINATES BY STIFFNESS PARTITION[J]. Applied Mathematics and Mechanics (English Edition), 1998, 19(3): 279-287.

Hua Yu;Wang Xingguo;Li Zhengneng. PROPERTY DEGRADATION OF ANISOTROPIC COMPOSITE LAMINATES WITH MATRIX CRACKING (I)-CONSTITUTIVE RELATION DEVELOPING FOR (θ_m/90_n) CRACKED LAMINATES BY STIFFNESS PARTITION[J]. Applied Mathematics and Mechanics (English Edition), 1998, 19(3): 279-287.

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