基于ABAQUS软件分析平台,采用非线性有限元法研究了横向载荷作用下复合材料双曲率壳的屈曲和后屈曲行为.通过在有限元模型中引入Wsai-Wu失效准则,预测了复合材料双曲率壳的初始失效及渐进破坏过程,数值结果和试验数据吻合较好,表明了该模型的合理有效性,并详细讨论了各种参数对屈曲和后屈曲行为的影响.经分析复合材料双曲率加筋壳在均布压载和剪力联合作用下的屈曲和后屈曲行为,得到了屈曲载荷的拟合曲线,研究表明顺剪力的存在有利于提高屈曲载荷.
参考文献
| [1] | Hossain S J,Sinha P K,Sheikh A H.A finite element formulation for the analysis of laminate composite shells[J].Computers and Structures,2004,82(20/21):1628-1638. |
| [2] | Chakravorty D.Free vibration analysis of point-supported laminated composite doubly curved shells --A finite element approach[J].Computer & Structures,1995,54(2):191-198. |
| [3] | Chakravorty D.Finite element free vibration analysis of doubly curved laminated composite shells[J].Journal of Sound and Vibration,1996,191(4):491-504. |
| [4] | Kumar R L,Datta P K.Tension buckling and dynamic stability behavior laminated of laminate composites doubly curved panels subjected to partial edge loading[J].Composite Structures,2003,60(2):171-181. |
| [5] | Sahu S K,Datta P K.Parametric resonance characteristics of laminated composite doubly curved shells subject to non-uniform loading[J].Journal of Sound and Vibration,2001,240(1):117-129. |
| [6] | Singha M K.Thermomechanical postbuckling response and first-ply failure analysis of doubly curved panels[J].AIAA Journal,2003,41(12):2486-2491. |
| [7] | 赵桂平,赵钟斗.基于改进弧长法的层压复合壳后屈曲反应分析[J].工程力学,2003,20(1):106-111.Zhao Gulping,Zhao Zhongdou.Postbucking analysis of laminated composite shell based on an improved arc-length method[J].Engineering Mechanics,2003,20(1):106-111. |
| [8] | Engelstad,Reddy J N.Postbuckling response and failure prediction of graphite/epoxy plates loaded in compression[J].AIAA,1992,30(8):2106-2113. |
| [9] | Hibbit D,Karlsson B,Sorenson P.ABAQUS reference manual 6.5[M].Pawtucket:ABAQUS,Inc,2005. |
| [10] | Leicester R H.Finite deformations of shallow shells[J].Journal of Engineering Mechanics,1968,94:1409-1423. |
| [11] | Mallick P K.Composites engineering handbook[M].Marcel Dekker,ISBN 0-8247-9304-8,1997. |
| [12] | Wardle B L,Lagace P A.Behavior of composite shells under transverse impact and quasi-static loading[J].AIAA,1998,36(6):1065-1073. |
| [13] | Spottswood S M,Palazotto A N.Progressive failure analysis of a composite shell[J].Composite Structures,2001,53(1):117-181. |
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