Fatigue Life of 7005 Aluminum Alloy Cruciform Joint Considering Welding Residual Stress
An evaluation method is proposed for determining the full fatigue life of aluminum alloy cruciform joint, including the crack initiation and propagation with welding residual stress. The results of simulations have shown that the boundary between the initiation and propagation stage is not constant,...
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doaj-f19c423979a144348b83576799200ba92021-03-07T00:02:08ZengMDPI AGMaterials1996-19442021-03-01141253125310.3390/ma14051253Fatigue Life of 7005 Aluminum Alloy Cruciform Joint Considering Welding Residual StressJianxiao Ma0Ping Wang1Hongyuan Fang2State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, China Nuclear Power Engineering Co., Ltd., Shenzhen 518172, ChinaState Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, China Nuclear Power Engineering Co., Ltd., Shenzhen 518172, ChinaState Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, ChinaAn evaluation method is proposed for determining the full fatigue life of aluminum alloy cruciform joint, including the crack initiation and propagation with welding residual stress. The results of simulations have shown that the boundary between the initiation and propagation stage is not constant, but a variable value. The residual stress leads to a significant reduction in both stages, which is more severe on initiation. With considering residual stress, the ratio of crack initiation to total life is below 7%. The effect of residual stress varies with external loading; when external load is lower, the residual stress has a greater effect.https://www.mdpi.com/1996-1944/14/5/1253total fatigue lifecruciform joinwelding residual stressstress intensity factorstress concentration |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jianxiao Ma Ping Wang Hongyuan Fang |
spellingShingle |
Jianxiao Ma Ping Wang Hongyuan Fang Fatigue Life of 7005 Aluminum Alloy Cruciform Joint Considering Welding Residual Stress Materials total fatigue life cruciform join welding residual stress stress intensity factor stress concentration |
author_facet |
Jianxiao Ma Ping Wang Hongyuan Fang |
author_sort |
Jianxiao Ma |
title |
Fatigue Life of 7005 Aluminum Alloy Cruciform Joint Considering Welding Residual Stress |
title_short |
Fatigue Life of 7005 Aluminum Alloy Cruciform Joint Considering Welding Residual Stress |
title_full |
Fatigue Life of 7005 Aluminum Alloy Cruciform Joint Considering Welding Residual Stress |
title_fullStr |
Fatigue Life of 7005 Aluminum Alloy Cruciform Joint Considering Welding Residual Stress |
title_full_unstemmed |
Fatigue Life of 7005 Aluminum Alloy Cruciform Joint Considering Welding Residual Stress |
title_sort |
fatigue life of 7005 aluminum alloy cruciform joint considering welding residual stress |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2021-03-01 |
description |
An evaluation method is proposed for determining the full fatigue life of aluminum alloy cruciform joint, including the crack initiation and propagation with welding residual stress. The results of simulations have shown that the boundary between the initiation and propagation stage is not constant, but a variable value. The residual stress leads to a significant reduction in both stages, which is more severe on initiation. With considering residual stress, the ratio of crack initiation to total life is below 7%. The effect of residual stress varies with external loading; when external load is lower, the residual stress has a greater effect. |
topic |
total fatigue life cruciform join welding residual stress stress intensity factor stress concentration |
url |
https://www.mdpi.com/1996-1944/14/5/1253 |
work_keys_str_mv |
AT jianxiaoma fatiguelifeof7005aluminumalloycruciformjointconsideringweldingresidualstress AT pingwang fatiguelifeof7005aluminumalloycruciformjointconsideringweldingresidualstress AT hongyuanfang fatiguelifeof7005aluminumalloycruciformjointconsideringweldingresidualstress |
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1724229685119811584 |