| 复合材料分层断裂判据及扩展准则研究 |
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| 引用本文： | 范学领,孙秦.复合材料分层断裂判据及扩展准则研究[J].计算力学学报,2011,28(3):479-482,487. |
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| 作者姓名： | 范学领 孙秦 |
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| 作者单位： | 1. 西安交通大学,航天航空学院,西安,710049
2. 西北工业大学,航空学院,西安,710072 |
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| 基金项目： | 国家自然科学基金(11002104),博士后科学基金(20100481340)资助项目. |
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| 摘 要： | 针对现有层间开裂判据及扩展准则未考虑断裂模式耦合性的现状,本文提出了基于模式混合度的复合材料分层断裂判据及扩展准则。依此模型计算了蒙皮/凸缘复合材料加筋层合板结构的分层扩展行为。计算结果表明,所提出的开裂判据及扩展准则能够较好的预测蒙皮/凸缘复合材料加筋层合板结构的断裂力学行为，所得结果对确定含损伤复合材料加筋层合板结...
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| 关 键 词： | 分层损伤 应变能释放率 模式混合度 |
| 收稿时间： | 2009/11/6 0:00:00 |
| 修稿时间： | 9/8/2010 12:00:00 AM |
Study on composites delamination initiation and propagation criterion |
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| FAN Xue-ling and SUN Qin.Study on composites delamination initiation and propagation criterion[J].Chinese Journal of Computational Mechanics,2011,28(3):479-482,487. |
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| Authors: | FAN Xue-ling and SUN Qin |
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| Abstract: | To take into account of the coupling effects of different fracture modes for composites interface crack under mixed mode loading conditions, a novel fracture onset and growth criterion was proposed based on mode-mixing. In addition, the application of the criterion for predicting delaminaiton in modern aeronautical composite skin/stringer structures was also studied. The good correlation of the results demonstrated the effectiveness of the proposed criterion. |
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| Keywords: | delamination strain energy release rate (SERR) mode-mixing |
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