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| 复合钎料钎焊Al_2O_3接头剪切应力场的数值模拟 | |
| 引用本文： | 李雅范,杨建国,姬书得,吴京洧,方洪渊. 复合钎料钎焊Al_2O_3接头剪切应力场的数值模拟[J]. 焊接学报, 2011, 32(8): 109-112 |
| 作者姓名： | 李雅范 杨建国 姬书得 吴京洧 方洪渊 |
| 作者单位： | 1. 哈尔滨电机厂交直流电机有限责任公司,哈尔滨,150046 2. 哈尔滨工业大学先进焊接与连接国家重点实验室,哈尔滨,150001 3. 沈阳航空航天大学航空宇航学院,沈阳,110136 |
| 摘 要： | 对Al2O3颗粒增强复合钎料钎焊Al2O3/Al2O3接头的残余应力场进行了数值模拟,分析了Al2O3陶瓷颗粒的加入对陶瓷接头残余剪切应力的影响.模拟发现,陶瓷接头的最大应力位于陶瓷-钎缝界面,陶瓷颗粒的加入对钎焊接头应力起到了缓解作用,其缓解程度随陶瓷颗粒体积分数的增加而增大;在陶瓷颗粒百分比一定的情况下,钎缝厚度的... |
| 关 键 词： | 复合钎料 钎焊接头 数值模拟 剪切应力 |
| 收稿时间： | 2010-05-31 |
Numerical simulation of shear stress of Al2O3 joint brazed with composite filler materials |
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| LI Yafan,YANG Jianguo,JI Shude,WU Jingwei and FANG Hongyuan. Numerical simulation of shear stress of Al2O3 joint brazed with composite filler materials[J]. Transactions of The China Welding Institution, 2011, 32(8): 109-112 | |
| Authors: | LI Yafan YANG Jianguo JI Shude WU Jingwei FANG Hongyuan |
| Affiliation: | AC-DC Motor Company Limited, Harbin Electric Machinery, Harbin 150046, China,State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China,School of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, China,State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China and State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China |
| Abstract: | The numerical simulation on shear stress of Al2O3/Al2O3 joints brazed with the Al2O3 particles reinforced composite filler materials is processed. And then the effect of Al2O3 particles on residual shear stress of ceramic joints is researched. The results show that the maximum shear stress appears in the interface between ceramic and filler materials. The Al2O3 particles in composite filler materials can decrease the shear stress of ceramic joints and the effect on decreasing stress heightens with the increase of the volume percent of ceramic particles. Moreover, the residual shear stress decreases with the increase of thickness of filler materials. The results of shear experiment on Al2O3/Al2O3 joints show that the shear strength increases with the increase of the volume percent of ceramic particles when the volume percent changes from 0% to 15%, which verifies the rationality of the results of numerical simulation. |
| Keywords: | composite filler materials brazed joint numerical simulation shear stress |
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