含分层损伤复合材料加筋层合板的分层扩展研究

白瑞祥; 陈浩然

含分层损伤复合材料加筋层合板的分层扩展研究

大连理工大学工业装备结构分析国家重点实验室,大连 116024

基金项目: 国家自然科学基金资助项目(59975014)

详细信息

作者简介:
自瑞祥(1972- ),男,辽宁人,讲师,博士(联系人Tel:+86-411-4706085;Fax:+86-411-4708400;E-mail:bairx@dlut.edu.cn);陈浩然(1940- ),男,上海人,教授,博士生学师.

中图分类号: TB332；O346.5
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出版历程
- 收稿日期: 2002-07-23
- 修回日期: 2003-01-30
- 刊出日期: 2004-04-15

Numerical Analysis of Delamintation Growth for Stiffened Composite Laminated Plates

Dalian University of Technology, Dalian 116024, P. R. China

摘要

摘要: 建立了复合材料加筋结构的后屈曲和分层损伤扩展行为的数值模拟方法．基于Mindlin一阶剪切理论和von-Krmn大挠度理论的层合板和层合梁单元，提出了含分层损伤复合材料加筋层合板分层扩展行为的有限元分析方法；利用虚裂纹闭合技术计算分层前缘的总能量释放率，并采用总能量释放率准则分层扩展判据，结合自适应网格移动技术，对在压缩载荷作用下的具有不同加筋形式，不同初始分层面积和形状的加筋板结构分层扩展行为进行了数值模拟研究，在分析中还考虑了加筋刚度、位置和分布，分层形状和大小、边界支撑强弱和分层前缘的接触效应对结构分层扩展行为的影响．本文所提出的研究方法对工程界关于复合材料结构的设计具有重要意义．
- 有限元法 /
- 后屈曲 /
- 能量释放率 /
- 分层损伤扩展 /
- 复合材料加筋板
Abstract: A study of postbudding and delamination propagation behavior in delaminated stiffened composite plies is presented. A methodology is proposed for simulating the multi-failure responses,such as initial and postbuckling,delamination onset and propagation,etc. A finite element analysis was conducted on the bass of the Mindlin first order shear effect theory and the von-Kûrmûn nonlinear deformation assumption The total energy release rate used as the criteria of delamination growth was estimatedwith virtual aback closure technique (VCGT). A self-adaptive grid moving technology was adopted to model the delalrunation growth prooess. Moreover,the contact effect along delaminafion front was also considered during the numerical simulation process.By some nurrerical examples,the influence of distribution a1d location of stiffener,configuration and size of the delamination,boundary condition and contact effect upon the delamination growth behavior of the stiffened composite plates were investigated The method and numerical condusion provided should be of great value to engineers dealing with composite structures.
- finite element method /
- postbuckling /
- energy release rate /
- delamination growth /
- stiffened composite laminated plate

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参考文献(21)

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含分层损伤复合材料加筋层合板的分层扩展研究

作者简介:
自瑞祥(1972- ),男,辽宁人,讲师,博士(联系人Tel:+86-411-4706085;Fax:+86-411-4708400;E-mail:bairx@dlut.edu.cn);陈浩然(1940- ),男,上海人,教授,博士生学师.

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Numerical Analysis of Delamintation Growth for Stiffened Composite Laminated Plates

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含分层损伤复合材料加筋层合板的分层扩展研究

作者简介: 自瑞祥(1972- ),男,辽宁人,讲师,博士(联系人Tel:+86-411-4706085;Fax:+86-411-4708400;E-mail:bairx@dlut.edu.cn);陈浩然(1940- ),男,上海人,教授,博士生学师.

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Numerical Analysis of Delamintation Growth for Stiffened Composite Laminated Plates

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出版历程

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作者简介:
自瑞祥(1972- ),男,辽宁人,讲师,博士(联系人Tel:+86-411-4706085;Fax:+86-411-4708400;E-mail:bairx@dlut.edu.cn);陈浩然(1940- ),男,上海人,教授,博士生学师.