| 金属壳体支座角焊缝应力场数值模拟 |
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| 引用本文： | 秦占领,熊然,张黎旭.金属壳体支座角焊缝应力场数值模拟[J].宇航材料工艺,2018,48(3):23-26. |
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| 作者姓名： | 秦占领 熊然 张黎旭 |
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| 作者单位： | 西安航天动力机械有限公司 |
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| 摘 要： | 文摘针对某固体发动机金属壳体支座焊接过程及热处理过程,利用通用ANSYS有限元分析软件对不同尺寸支座角焊缝应力场进行模拟计算。结果表明:支座焊后的应力主要集中在角焊缝热影响区处,应力水平较高,且随着支座尺寸的增加,残余应力显著增加;壳体经过退火和调质热处理后,角焊缝残余应力得到重新分布,整体残余应力较小。
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| 关 键 词： | 固体发动机 角焊缝 应力场 |
| 收稿时间： | 2017/8/14 0:00:00 |
Simulation of Welding Residual Stress in Metal Shell Fillet Welds Fabricated by Super-Strength Steel |
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| QIN Zhanling,XIONG Ran and ZHANG Lixu.Simulation of Welding Residual Stress in Metal Shell Fillet Welds Fabricated by Super-Strength Steel[J].Aerospace Materials & Technology,2018,48(3):23-26. |
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| Authors: | QIN Zhanling XIONG Ran and ZHANG Lixu |
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| Institution: | Xi''an Aerospace Power Machine Factory, Xi''an 710025,Xi''an Aerospace Power Machine Factory, Xi''an 710025 and Xi''an Aerospace Power Machine Factory, Xi''an 710025 |
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| Abstract: | In this paper, the welding residual stress of metal shell fillet welds which are fabricated by super strength steel is simulated during welding and heat treatment process. Finite element simulation is performed by ANSYS code. The results show that the residual stress is concentrated in heat affected zone of support fillet welds. The peak stress increases with the number of spport fillet welds increaseing. In order to improve the performance of these metal shells, heat treatments (annealing and tempering) are used. It is revealed that the welding residual stress in the fillet welds decreases and redistribs after heat treatments. |
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| Keywords: | Solid motor Fillet weld Welding residual stress |
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