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Temperature-Moisture-Mechanical coupling fatigue behaviours of screwed Composite-Steel joints
•Novel temperature-moisture-mechanical (TMM) coupling constitutive model, fatigue failure criterion and progressive fatigue damage algorithm are devised for simulating fatigue failure mechanisms and modes and for predicting fatigue lives of composite artefacts.•Tension-tension fatigue tests are resp...
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Published in: | International journal of fatigue 2023-08, Vol.173, p.107700, Article 107700 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | •Novel temperature-moisture-mechanical (TMM) coupling constitutive model, fatigue failure criterion and progressive fatigue damage algorithm are devised for simulating fatigue failure mechanisms and modes and for predicting fatigue lives of composite artefacts.•Tension-tension fatigue tests are respectively conducted on single-lap screwed CMJs in the LTD (-40℃ and dry), RTD (+23 ℃ and dry), RTW (+23 ℃ and wet) and ETW (+55℃ and wet) environments. From the experiment results, the TMM coupling fatigue behaviors are analyzed and discussed.•Predicted results agree well with experimental findings, demonstrating the feasible and practical usage of the proposed model.
This paper seeks to probe temperature-moisture-mechanical coupling fatigue behaviours of screwed composite-steel joints by using experimental and numerical methods. Novel temperature-moisture-mechanical (TMM) coupling constitutive model, fatigue failure criterion and progressive fatigue damage algorithm (PFDA) are first devised for simulating fatigue failure mechanisms and modes and for predicting fatigue lives of single-lap screwed composite-metal joints (CMJs) in arbitrary temperature-moisture environment. In order to validate the presented model and algorithm, tension–tension fatigue tests are then conducted on the CMJs in four representative environments: low temperature of −40 °C and dry (LTD), room temperature of + 23 °C and dry (RTD), room temperature of + 23 °C and wet (RTW) and elevated temperature of + 55 °C and wet (ETW), respectively. Finally, the TMM coupling fatigue behaviors of the CMJs are analyzed and discussed from the experiments and progressive fatigue damage modelling, and predicted results agree well with experimental findings, demonstrating the feasible and practical usage of the proposed model. |
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ISSN: | 0142-1123 1879-3452 |
DOI: | 10.1016/j.ijfatigue.2023.107700 |