STUDY ON FATIGUE CRACK GROWTH RATE BASED ON ELASTIC-PLASTIC MECHANICS (MT)
Definition based on the incremental theory of plasticity of J integral, combining the method of experiment and computer simulation, the method of crack propagation rate based on elastic-plastic mechanics is studied, the research shows that the crack growth rate curve obtained by the incremental plas...
| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2023-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.03.014 |
| _version_ | 1797767627170381824 |
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| author | XU LiDa ZHANG RuiJin ZHAO Shuo |
| author_facet | XU LiDa ZHANG RuiJin ZHAO Shuo |
| author_sort | XU LiDa |
| collection | DOAJ |
| description | Definition based on the incremental theory of plasticity of J integral, combining the method of experiment and computer simulation, the method of crack propagation rate based on elastic-plastic mechanics is studied, the research shows that the crack growth rate curve obtained by the incremental plastic J integral is well described the material fracture mechanics performance characteristics, ΔJ integral as the crack growth driving force is verified the rationality of the parameters, in order to further research to explore mechanism of crack extension provides research foundation, a new model is proposed based on the 7N01 aluminum alloy test data, it takes into account the effect of stress ratio on crack propagation, and it is suitable for estimating fatigue life of materials in engineering practice. |
| first_indexed | 2024-03-12T20:41:34Z |
| format | Article |
| id | doaj.art-d3b9dcf6b1a2423cb94fca44c90d742d |
| institution | Directory Open Access Journal |
| issn | 1001-9669 |
| language | zho |
| last_indexed | 2024-03-12T20:41:34Z |
| publishDate | 2023-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj.art-d3b9dcf6b1a2423cb94fca44c90d742d2023-08-01T07:55:44ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692023-01-0160761240373533STUDY ON FATIGUE CRACK GROWTH RATE BASED ON ELASTIC-PLASTIC MECHANICS (MT)XU LiDaZHANG RuiJinZHAO ShuoDefinition based on the incremental theory of plasticity of J integral, combining the method of experiment and computer simulation, the method of crack propagation rate based on elastic-plastic mechanics is studied, the research shows that the crack growth rate curve obtained by the incremental plastic J integral is well described the material fracture mechanics performance characteristics, ΔJ integral as the crack growth driving force is verified the rationality of the parameters, in order to further research to explore mechanism of crack extension provides research foundation, a new model is proposed based on the 7N01 aluminum alloy test data, it takes into account the effect of stress ratio on crack propagation, and it is suitable for estimating fatigue life of materials in engineering practice.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.03.014Fatigue crack growth rate;Elastic-plastic mechanics;J-integral;Stress ratios effect |
| spellingShingle | XU LiDa ZHANG RuiJin ZHAO Shuo STUDY ON FATIGUE CRACK GROWTH RATE BASED ON ELASTIC-PLASTIC MECHANICS (MT) Jixie qiangdu Fatigue crack growth rate;Elastic-plastic mechanics;J-integral;Stress ratios effect |
| title | STUDY ON FATIGUE CRACK GROWTH RATE BASED ON ELASTIC-PLASTIC MECHANICS (MT) |
| title_full | STUDY ON FATIGUE CRACK GROWTH RATE BASED ON ELASTIC-PLASTIC MECHANICS (MT) |
| title_fullStr | STUDY ON FATIGUE CRACK GROWTH RATE BASED ON ELASTIC-PLASTIC MECHANICS (MT) |
| title_full_unstemmed | STUDY ON FATIGUE CRACK GROWTH RATE BASED ON ELASTIC-PLASTIC MECHANICS (MT) |
| title_short | STUDY ON FATIGUE CRACK GROWTH RATE BASED ON ELASTIC-PLASTIC MECHANICS (MT) |
| title_sort | study on fatigue crack growth rate based on elastic plastic mechanics mt |
| topic | Fatigue crack growth rate;Elastic-plastic mechanics;J-integral;Stress ratios effect |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.03.014 |
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