| 大变形下对称自由边分层复合材料的能量释放率研究 |
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| 引用本文： | 孙先念.大变形下对称自由边分层复合材料的能量释放率研究[J].大连理工大学学报,1998,38(3):249-254. |
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| 作者姓名： | 孙先念 |
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| 作者单位： | 大连理工大学工程力学系 |
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| 基金项目： | 国家自然科学基金,国家高等学校博士学科点专项科研基金 |
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| 摘 要： | 采用准三维模型为基础的非线性有限元，研究具有对称自由边分层损伤的复合层合板在均匀轴向应变作用下的分层断裂力学行为；
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| 关 键 词： | 非线性 裂纹扩展力 大变形 复合材料 能量释放率 |
Study of energy release rate of composite laminate with symmetric edge delaminations considering geometric nonlinearity |
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| Sun Xiannian,Chen Haoran.Study of energy release rate of composite laminate with symmetric edge delaminations considering geometric nonlinearity[J].Journal of Dalian University of Technology,1998,38(3):249-254. |
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| Authors: | Sun Xiannian Chen Haoran |
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| Abstract: | A quasi three dimensional geometric nonlinear analysis of a symmetric angle ply laminate with edge delaminations located symmetrically with respect to the laminate midplane subjected to uniform axial extension is presented. The individual and total energy release rate are estimated with virtual crack closure technique(VCCT). 8 node isoparametric parabolic elements are used to model the edge delaminations. Some numerical results and discussions are given. |
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| Keywords: | non linear crack extension force finite element methods/delamination damage |
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