Considering the Effect of Non-Propagating Cracks on Fatigue Limit Prediction in the Critical Distance Method Framework
Although the material has developed micro-scale cracks, the micro-cracks stop propagating and transform into non-propagating cracks (NPCs) under fatigue limit loading. The movement of the crack tip position caused by the non-propagating crack will generate a small change in the notch geometry, which...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/21/10994 |
| _version_ | 1797469229657620480 |
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| author | Zhuo Zhou Deqing Guan |
| author_facet | Zhuo Zhou Deqing Guan |
| author_sort | Zhuo Zhou |
| collection | DOAJ |
| description | Although the material has developed micro-scale cracks, the micro-cracks stop propagating and transform into non-propagating cracks (NPCs) under fatigue limit loading. The movement of the crack tip position caused by the non-propagating crack will generate a small change in the notch geometry, which easily triggers the geometric size effect. Since the critical distance method focuses on evaluating the limit of fatigue in terms of the material’s cracking conditions, the present study attempted to develop a notched fatigue analysis model to consider the effect of non-propagating cracks on fatigue limit prediction in the critical distance method framework. The effectiveness and capability of the proposed model were demonstrated by the fatigue experimental data of Q345qD low carbon steel. |
| first_indexed | 2024-03-09T19:18:25Z |
| format | Article |
| id | doaj.art-b81bb8cff8724685acff51cf2a801858 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T19:18:25Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-b81bb8cff8724685acff51cf2a8018582023-11-24T03:36:16ZengMDPI AGApplied Sciences2076-34172022-10-0112211099410.3390/app122110994Considering the Effect of Non-Propagating Cracks on Fatigue Limit Prediction in the Critical Distance Method FrameworkZhuo Zhou0Deqing Guan1Department of Civil Engineering, The Changsha University of Science &Technology, Changsha 410114, ChinaDepartment of Civil Engineering, The Changsha University of Science &Technology, Changsha 410114, ChinaAlthough the material has developed micro-scale cracks, the micro-cracks stop propagating and transform into non-propagating cracks (NPCs) under fatigue limit loading. The movement of the crack tip position caused by the non-propagating crack will generate a small change in the notch geometry, which easily triggers the geometric size effect. Since the critical distance method focuses on evaluating the limit of fatigue in terms of the material’s cracking conditions, the present study attempted to develop a notched fatigue analysis model to consider the effect of non-propagating cracks on fatigue limit prediction in the critical distance method framework. The effectiveness and capability of the proposed model were demonstrated by the fatigue experimental data of Q345qD low carbon steel.https://www.mdpi.com/2076-3417/12/21/10994notch fatiguecritical distance methodnon-propagating cracksize effect |
| spellingShingle | Zhuo Zhou Deqing Guan Considering the Effect of Non-Propagating Cracks on Fatigue Limit Prediction in the Critical Distance Method Framework Applied Sciences notch fatigue critical distance method non-propagating crack size effect |
| title | Considering the Effect of Non-Propagating Cracks on Fatigue Limit Prediction in the Critical Distance Method Framework |
| title_full | Considering the Effect of Non-Propagating Cracks on Fatigue Limit Prediction in the Critical Distance Method Framework |
| title_fullStr | Considering the Effect of Non-Propagating Cracks on Fatigue Limit Prediction in the Critical Distance Method Framework |
| title_full_unstemmed | Considering the Effect of Non-Propagating Cracks on Fatigue Limit Prediction in the Critical Distance Method Framework |
| title_short | Considering the Effect of Non-Propagating Cracks on Fatigue Limit Prediction in the Critical Distance Method Framework |
| title_sort | considering the effect of non propagating cracks on fatigue limit prediction in the critical distance method framework |
| topic | notch fatigue critical distance method non-propagating crack size effect |
| url | https://www.mdpi.com/2076-3417/12/21/10994 |
| work_keys_str_mv | AT zhuozhou consideringtheeffectofnonpropagatingcracksonfatiguelimitpredictioninthecriticaldistancemethodframework AT deqingguan consideringtheeffectofnonpropagatingcracksonfatiguelimitpredictioninthecriticaldistancemethodframework |