| 残余热应力对复合材料修理金属裂纹板影响分析 |
| |
| 引用本文： | 刘宝如,张移山,李曙林,华庆祥. 残余热应力对复合材料修理金属裂纹板影响分析[J]. 玻璃钢/复合材料, 2007, 0(3): 21-24 |
| |
| 作者姓名： | 刘宝如 张移山 李曙林 华庆祥 |
| |
| 作者单位： | 1. 空军工程大学工程学院,陕西西安,710038
2. 北京航空工程技术研究中心,北京,100076 |
| |
| 摘 要： | 本文建立了复合材料胶接修理金属裂纹板的三板有限元模型;采用分析金属裂纹板裂纹尖端应力强度因子的方法,分析了残余热应力对复合材料修理金属裂纹板修理效果的影响。结果表明,残余热应力对单面修理结构的影响小于双面修理结构。残余热应力对单面修理结构的影响由于裂纹板宽度比值不同而不同。补片与母板的热膨胀系数相差越大,残余热应力对修补效果影响越大。
|
| 关 键 词： | 复合材料补片 应力强度因子 有限元模型 残余热应力 |
| 文章编号： | 1003-0999（2007）03-0021-04 |
| 修稿时间： | 2006-08-23 |
INFLUENCE OF RESIDUAL THERMO-STRESS ON REPAIRING CRACKED METALLIC PANEL WITH COMPOSITE PATCH BONDED |
| |
| LIU Bao-ru,ZHANG Yi-shan,LI Shu-lin,HUA Qing-xiang. INFLUENCE OF RESIDUAL THERMO-STRESS ON REPAIRING CRACKED METALLIC PANEL WITH COMPOSITE PATCH BONDED[J]. Fiber Reinforced Plastics/Composites, 2007, 0(3): 21-24 |
| |
| Authors: | LIU Bao-ru ZHANG Yi-shan LI Shu-lin HUA Qing-xiang |
| |
| Affiliation: | 1. Engineering College, Air Force Engineering University, Xian 710038, China; 2. Beijing Aeronautical Technology Research Centre, Beijing 100076, China |
| |
| Abstract: | A three layers finite element model for repairing cracked metallic panel with composite patch bonded is set up.With the analysis of stress intensity factor near the crack tip of the cracked metallic panel,the influence of residual thermal stress on repairing cracked metallic panel with composite patch bonded is investigated.The conclusion is drawn in this paper that the residual thermo-stress on the single-repaired system is smaller than the double-repaired system.The influence of residual thermo-stress on the single-repaired system varies from the different ratio of crack length to the width of a cracked panel.The bigger the coefficient of thermal expansion of patch to panel is,the more the influence of residual thermo-stress on the repaired system. |
| |
| Keywords: | composite patch stress intensity factor finite element model residual thermal stress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
