Experimental Verification and Estimation of Fatigue Crack Growth Delay due to Single Overload
A novel crack driving force parameter based on the plastic zone size for overload/constant amplitude loading is proposed to estimate the fatigue crack growth (FCG) and the beneficial fatigue life due to overload. By considering the stress distribution in the plastic zone, the effective stress intens...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/3715840 |
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| _version_ | 1832548634313359360 |
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| author | Hao Wu Jun Zhu |
| author_facet | Hao Wu Jun Zhu |
| author_sort | Hao Wu |
| collection | DOAJ |
| description | A novel crack driving force parameter based on the plastic zone size for overload/constant amplitude loading is proposed to estimate the fatigue crack growth (FCG) and the beneficial fatigue life due to overload. By considering the stress distribution in the plastic zone, the effective stress intensity factor (SIF) integrated from equivalent residual stress is presented. It is illustrated that the FCG rate decreases rapidly after overload and then gradually returns to the baseline FCG rate. Besides, the overload ratio Rpic has a significant influence on the affected length ad and the beneficial fatigue life Nd. |
| format | Article |
| id | doaj-art-c423602e048645aca86bab47f6a9fee6 |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-c423602e048645aca86bab47f6a9fee62025-02-03T06:13:32ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/3715840Experimental Verification and Estimation of Fatigue Crack Growth Delay due to Single OverloadHao Wu0Jun Zhu1School of Aerospace Engineering and Applied MechanicsNantong Taisheng Blue Island Offshore Co LtdA novel crack driving force parameter based on the plastic zone size for overload/constant amplitude loading is proposed to estimate the fatigue crack growth (FCG) and the beneficial fatigue life due to overload. By considering the stress distribution in the plastic zone, the effective stress intensity factor (SIF) integrated from equivalent residual stress is presented. It is illustrated that the FCG rate decreases rapidly after overload and then gradually returns to the baseline FCG rate. Besides, the overload ratio Rpic has a significant influence on the affected length ad and the beneficial fatigue life Nd.http://dx.doi.org/10.1155/2022/3715840 |
| spellingShingle | Hao Wu Jun Zhu Experimental Verification and Estimation of Fatigue Crack Growth Delay due to Single Overload Advances in Materials Science and Engineering |
| title | Experimental Verification and Estimation of Fatigue Crack Growth Delay due to Single Overload |
| title_full | Experimental Verification and Estimation of Fatigue Crack Growth Delay due to Single Overload |
| title_fullStr | Experimental Verification and Estimation of Fatigue Crack Growth Delay due to Single Overload |
| title_full_unstemmed | Experimental Verification and Estimation of Fatigue Crack Growth Delay due to Single Overload |
| title_short | Experimental Verification and Estimation of Fatigue Crack Growth Delay due to Single Overload |
| title_sort | experimental verification and estimation of fatigue crack growth delay due to single overload |
| url | http://dx.doi.org/10.1155/2022/3715840 |
| work_keys_str_mv | AT haowu experimentalverificationandestimationoffatiguecrackgrowthdelayduetosingleoverload AT junzhu experimentalverificationandestimationoffatiguecrackgrowthdelayduetosingleoverload |