Buckling of Rectangular Delamination Bridged by Fibers

Abstract

Abstract: The problem of buckling of delamination stitched with fiberbridge in 3D composites was solved by FEA. Linear springs of tensiononly or compressiononly distributed on the nodes of delamination cells are used to simulate the fibers and substrate respectively. The problem of eigenvalue buckling is transformed into the problem of geometric nonlinearities with an initial imperfection and solved by FEA of incremental nonlinear structural analysis. The results show that there are period contact points (districts) between delamination and substrate. And as the elastic coefficient of the fiber bridge increases, the critical buckling loads may also increase. The relation of the characteristic length and fiberbridge is expressed by mathematical formula.

Key words: delamination, fiberbridge, buckling, buckling modal

CLC Number:

O 343

DI San-Dong, ZHANG Yang, LI Si-Ping. Buckling of Rectangular Delamination Bridged by Fibers[J]. Journal of Shanghai Jiaotong University, 2011, 45(10): 1475-1478.

References

［1］Shahwan K W, Waas A M. Buckling of unilaterally constrained plates: Applications to the study of delaminations in layered structures［J］. Journal of the Franklin Institute，1998，335（16）：10091039.

［2］Chai H. On the postbuckling behavior of bilaterally constrained plates［J］. International Journal of Solids and Structures，2002，39（11）：29112926.

［3］Holanda A S, Goncalves P B. Postbuckling analysis of plates resting on a tensionless elastic foundation［J］. Journal of Engineering Mechanics,2003,129（4）:438448.

［4］Cox B N. Delamination and buckling in 3D composites［J］. Journal of Composite Materials，1994，28（12）：11141126.

［5］李四平,黄玉盈,胡元太,等. 3D复合材料中纤维搭桥对脱层屈曲的影响［J］. 工程力学，1998，15（4）：127132.

LI Siping，HUANG yuying，HU Yuantai，et al.Effects of fiber bridge on the delamination buckling in 3D composites［J］. Engineering Mechanics, 1998，15（4）：127132.

［6］李四平,聂建国,钱稼茹,等. 复合材料脱层屈曲的摄动解［J］. 固体火箭技术，2000，23（1）：4046.

LI Siping, NIE Jianguo, QIAN Jiaru, et al. Perturbation solution of the delaminaion bulking for composite［J］. Journal of Solid Rocket Technology, 2000，23（1）：4046.

［7］LI Siping, NIE Jianguo, QIAN Jiaru, et al. Initial postbuckling and growth of a circular delamination bridged by nonlinear fibers［J］. ASME J Appl Mech, 2000，67（4）：777784.

［8］黄健强. 3D复合材料纤维搭桥对方形表面脱层屈曲的影响［J］. 广西工学院学报，2002，13（3）：58.

HUANG Jianqiang. The effects of fiber bridge of 3D composites materials on the delamination bulking of a squares surface［J］. Journal of Guangxi University of Technology, 2002，13（3）：58.

［9］黄健强,陈建桥,黄玉盈. 3D复合材料纤维搭桥对椭圆脱层屈曲的影响［J］. 华中科技大学学报（自然科学版），2002，30（6）：79.

HUANG Jianqiang, CHEN Jianqiao, HUANG Yuying. Effects of fiber bridge on delamination buckling in 3D composites［J］. J Huazhong Univ of Sci & Tech (Nature Science Ediion), 2002，30（6）：79.

［10］铁木辛柯S. 弹性稳定理论［M］. 张福范译. 北京：科学出版社，1958.

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