对在压缩载荷下先进复合材料等三角形格栅加筋板结构(AGS)后屈曲阶段的分层起裂和扩展过程进行了研究.基于一阶剪切变形理论和Von-Karman几何非线性关系,提出了AGS结构后屈曲有限元分析模型;基于总能量释放率准则,并利用虚裂纹闭合法(VCCT)及自适应网格的生成和移动技术分析了分层损伤的扩展过程,在分析过程中考虑了分层前缘的接触效应.并通过典型算例,讨论了不同的初始分层尺寸、肋骨刚度对等三角形格栅加筋板结构的分层起裂和扩展过程的影响,通过与具有相同几何尺度的正交格栅加筋板结构的比较,说明等三角形格栅加筋板结构具有较高的抗分层能力.本文方法和所得结论对AGS结构的承载能力预测和设计将具有参考价值.
参考文献
| [1] | 陈浩然,张志峰.先进复合材料格栅加筋结构(AGS)的制造分析和设计理论与方法,SAIL-R-2003-6[R].大连:大连理工大学,2003:2-9.Chen Haoran,Zhang Zhifeng.Advanced composite grid struc-ture,analysis of manufacture,theory and method of design,SAIL-R-2003-6[R].Dalian:Dalian University of Technology,2003:2-9. |
| [2] | Chen H J,Tesi S W.Analysis and optimum design of composite grid structures[J].Journal of Composite Materials,1996,30(4):503-533. |
| [3] | HiIiggins J,Wegner P,Viisoreanu A,Sanford G.Design and testing of the Minotaur advanced grid-stiffened fairing[J].Composite Structures,2004,66(4),339-349. |
| [4] | Wodesenbet E,Kidane S,Pang S S.Optimization for buckling loads of grid stiffened composite panels[J].Composite Structures,2003,60(2):159-169. |
| [5] | 张志峰,陈浩然,李煊,蒋元兴.先进复合材料格栅圆柱壳优化设计的混合遗传算法[J].复合材料学报,2005,22(2):166-171.Zhang Zhifeng,Chen I-Iaoran,Li Xuan,Jiang Yuanxing.Hybrid genetic algorithm for optimum design of advanced grid composite circular cylinders[J].Acta Materiae Compositae Sinica,2005,22(2):166-171. |
| [6] | 张志峰,陈浩然,白瑞祥.非完善复合材料格栅加筋圆柱壳的鲁棒优化设计[J].固体力学,2006,26(1):58-64.Zhang Zhifeng,Chen Haoran,Bai Ruixiang.Robust optimiza-tion of advanced grid composite cylindrical shell considering initial imperfection[J].Acta Mechanica Solida,2006,26(1) 58-64. |
| [7] | 白瑞祥,王蔓,陈浩然.含损伤复合材料AGS板的屈曲特性[J].复合材料学报,2005,22(4):136-141.Bai Ruixiang,Wang Man,Chen Haoran.Buckling behavior of composite advanced grid structures with delamination[J].Acts Materiae Compositae Sinica,2005,22(4):136-141. |
| [8] | 白瑞祥,王蔓,陈浩然.冲击后含损伤复合材料格栅加筋板的后屈曲[J].复合材料学报,2006,23(3):141-145.Bai Ruixiang,Wang Man,Chen Haoran.Postbuckling behavior of damaged advanced grid stiffened structure after impact[J].Acts Materiae Compositae Sinica,2006,23(3):141-145. |
| [9] | 白瑞祥,李泽成,陈浩然.基于累积失效法的含损伤格栅加筋板非线性屈曲性态分析[J].力学季刊,2006,27(2):240-246.Bai Ruixiang,Li Zechang,Chen Haoran.Nonlinear buckling behaviour of damaged stiffened grid plates using accumulative failure method[J].Quarterly of Mechanics,2006,27(2):240-246. |
| [10] | Chen Haoran,Bai Ruixiang,Wang Man.Study on failure process of delaminated stiffened composite plates under compression[J].Acta Mechanica Sinica:English Version,2003,19(4):289-299. |
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