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| 含分层缺陷复合材料层合板分层扩展研究 | |
| 引用本文： | 姜晓伟,朱书华,李国弘,徐建,童明波.含分层缺陷复合材料层合板分层扩展研究[J].航空计算技术,2014(5):73-76. |
| 作者姓名： | 姜晓伟 朱书华 李国弘 徐建 童明波 |
| 作者单位： | 1. 南京航空航天大学飞行器先进设计技术国防重点学科实验室,江苏南京,210016 2. 给天纳克中国研发中心,上海,201804 3. 西安卫星测控中心,陕西西安,710043 |
| 基金项目： | 江苏高校优势学科建设工程项目资助 |
| 摘 要： | 采用基于粘聚区模型(CZM)的粘接元方法对含分层缺陷复合材料层合板进行了分层扩展研究。在缺少材料层间试验数据的情形下,应用了一种参数估算法确定粘接元的界面强度和刚度,并计算得到了含分层缺陷复合材料层合板的分层起始及扩展载荷,计算结果与试验值吻合良好,验证了所用方法的有效性。在此基础上,分析了不同分层位置对分层屈曲载荷、分层起始及扩展载荷的影响,并讨论了铺层角度对分层扩展方向的影响。 |
| 关 键 词： | 复合材料 层合板 分层缺陷 分层扩展 |
Investigation of Delaminat ion Propagation of Composite Lamina te with Delaminait on Defects |
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| JIANG Xiao-wei,ZHU Shu-hua,LI Guo-hong,XU Jian,Tong Ming-bo.Investigation of Delaminat ion Propagation of Composite Lamina te with Delaminait on Defects[J].Aeronautical Computer Technique,2014(5):73-76. | |
| Authors: | JIANG Xiao-wei ZHU Shu-hua LI Guo-hong XU Jian Tong Ming-bo |
| Institution: | JIANG Xiao-wei, ZHU Shu-hua, LI Guo-hong, XU Jian, Tong Ming-bo (1. Key Laboratory of Fundamental Science for National Defense Department of Aircraft Design ,Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China ;2. TENNECO Global Research Center, Shanghai 201804, China ; 3. China Xi＇an Satellite Control Center, Xi＇an 710043, China) |
| Abstract: | The delamination propagation of composite laminate with delamination defects is investigated through cohesive element which is based on the theory of CZM model .A method of evaluating the parame-ters of cohesive element when the interface parameters are unknown is applied and the simulation results based on this method fit the experimental results well .With the foundation of the finite element model ver-ified above,the influence of different delamination location on the sublaminate buckling load ,delamina-tion initiation and propagation are analysed ,and the impact of ply orientation on the direction of delamina-tion propagation is discussed . |
| Keywords: | composite laminate delamination defects delamination propagation |
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