| ANALYSIS ON BUCKLING AND POSTBUCKLING OF DELAMINATION IN 3D COMPOSITES |
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| 引用本文： | Li Siping**,Huang Yuying,Hu Yuantai,Zhong Weifang,Huazhong University of Science and Technology,Wuhan 430074,China Doctoral candidate from Zhengzhou University of Technology,Zhengzhou 450002,China.. ANALYSIS ON BUCKLING AND POSTBUCKLING OF DELAMINATION IN 3D COMPOSITES[J]. Acta Mechanica Solida Sinica, 1997, 10(3): 212-219. DOI: 10.1007/BF02208071 |
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| 作者姓名： | Li Siping** Huang Yuying Hu Yuantai Zhong Weifang Huazhong University of Science and Technology Wuhan 430074 China Doctoral candidate from Zhengzhou University of Technology Zhengzhou 450002 China. |
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| 作者单位： | Li Siping**;Huang Yuying;Hu Yuantai;Zhong Weifang，Huazhong University of Science and Technology，Wuhan 430074，China Doctoral candidate from Zhengzhou University of Technology，Zhengzhou 450002，China. |
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| 基金项目： | The project supported by post doctoral science foundation of China |
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| 摘 要： | In this paper, the problem of axisymmetric buckling and postbuckling of a circular thin-film delamination bridged by through-thickness fiber tows in 3D composites is presented. An iterativeprocedure based on Taylor's series expansion is used to generate a family of nondimensionalized post-buckling solutions of the above problem by yon Karman's nonlinear plate theory. Attention is fo-cused, herein, on the effects of the bridge force of through-thickness fibers on the buckling and post-buckling behavior of the delamination. It is found that fiber bridge not only increases the ability of re-sisting delamination buckling and postbuckling, but also brings on the jump of the delamination deflec-tion mode during the postbuckling phase. Consequently the behavior of the composite structure with de-lamination is greatly improved, such as increasing the residual strength and prolonging the service life.
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| 收稿时间： | 1997-05-16 |
ANALYSIS ON BUCKLING AND POSTBUCKLING OF DELAMINATION IN 3D COMPOSITES |
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| Li Siping,Huang Yuying,Hu Yuantai,Zhong Weifang,Huazhong University of Science and Technology,Wuhan ,China Doctoral candidate from Zhengzhou University of Technology,Zhengzhou ,China.. ANALYSIS ON BUCKLING AND POSTBUCKLING OF DELAMINATION IN 3D COMPOSITES[J]. Acta Mechanica Solida Sinica, 1997, 10(3): 212-219. DOI: 10.1007/BF02208071 |
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| Authors: | Li Siping Huang Yuying Hu Yuantai Zhong Weifang Huazhong University of Science Technology Wuhan China Doctoral candidate from Zhengzhou University of Technology Zhengzhou China. |
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| Affiliation: | (1) Huazhong University of Science and Technology, 430074 Wuhan, China |
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| Abstract: | In this paper, the problem of axisymmetric buckling and postbuckling of a circular thin- film delamination bridged by through-thickness fiber tows in 3D composites is presented. An iterative procedure based on Taylor's series expansion is used to generate a family of nondimensionalized post- buckling solutions of the above problem by yon Karman's nonlinear plate theory. Attention is fo- cused, herein, on the effects of the bridge force of through-thickness fibers on the buckling and post- buckling behavior of the delamination. It is found that fiber bridge not only increases the ability of re- sisting delamination buckling and postbuckling, but also brings on the jump of the delamination deflec- tion mode during the postbuckling phase. Consequently the behavior of the composite structure with de- lamination is greatly improved, such as increasing the residual strength and prolonging the service life. |
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| Keywords: | 3D composites delamination buckling postbuckling fiber bridge |
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