| 面内损伤对埋藏分层影响的三维有限元分析 |
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| 引用本文： | 高相胜,张以都,黎定仕.面内损伤对埋藏分层影响的三维有限元分析[J].材料科学与工艺,2011,19(3):26-31. |
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| 作者姓名： | 高相胜 张以都 黎定仕 |
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| 作者单位： | 北京航空航天大学虚拟现实技术与系统国家重点实验室; |
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| 摘 要： | 运用大型有限元软件ANSYS,基于复合材料层合板损伤理论,建立了含面内损伤和埋藏分层的复合材料层板三维有限元模型.分析了面内损伤对复合材料层板分层的影响.采用三维Hashin准则预测复合材料损伤,分层区损伤采用多种损伤模型,损伤发生后,认为材料仍连续,并修改损伤单元对应的材料参数.通过虚拟裂纹闭合技术（VCCT）计算分...
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| 关 键 词： | 复合材料层合板 分层 面内损伤 能量释放率 应力均化 |
3D FEM analysis of the effects of in-plane damages on embedded delamination |
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| GAO Xiang-sheng,ZHANG Yi-du and LI Ding-shi.3D FEM analysis of the effects of in-plane damages on embedded delamination[J].Materials Science and Technology,2011,19(3):26-31. |
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| Authors: | GAO Xiang-sheng ZHANG Yi-du and LI Ding-shi |
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| Affiliation: | GAO Xiang-sheng,ZHANG Yi-du,LI Ding-shi(State Key Laboratory of Virtual Reality Technology and Systems,Beihang University,Beijing 100191,China) |
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| Abstract: | Based on the damage theory of composite laminates,a 3-D FEM model of composite laminates containing embedded delaminations and in-plane damages was developed.The effects of in-plane damages on delamination of composite laminates were investigated by ANSYS.The damage was predicted by 3-D Hashin-type criteria.The multi-kind damage model was adopted in the damage region at delamination front.The composite was still considered to be continuous after damage occurred,and the corresponding material constants of da... |
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| Keywords: | composite laminates delamination in-plane damage energy release rate stress homogenization |
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