Effect of forming strain on low cycle, high cycle and notch fatigue performance of automotive grade dual phase steels: A review
In many engineering structural applications, including car body structures, sheet metal formed components are used. A systematic investigation of the impact of forming strain on fatigue life is necessary for an accurate prediction of a formed component's fatigue life. The present work aims to d...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Forces in Mechanics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666359723000197 |
| _version_ | 1797806953276112896 |
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| author | Surajit Kumar Paul |
| author_facet | Surajit Kumar Paul |
| author_sort | Surajit Kumar Paul |
| collection | DOAJ |
| description | In many engineering structural applications, including car body structures, sheet metal formed components are used. A systematic investigation of the impact of forming strain on fatigue life is necessary for an accurate prediction of a formed component's fatigue life. The present work aims to determine the impact of diverse types of tensile pre-straining on high cycle fatigue (HCF), low cycle fatigue (LCF) and notch fatigue performance of automotive grade dual phase steels. In all examined pre-straining conditions, HCF life improves, LCF life deteriorates, and little change in notch fatigue life are observed. The most significant improvement in HCF life and deterioration in LCF life are observed for equi-biaxial and orthogonal tensile pre-straining conditions due to the rotation of maximum shear stress plane and the rotation of the deformation concentrated region around the hard martensite. As the strength improves during pre-straining, there is a corresponding increase in stress concentration around a notch, and as a result, no significant change in notch fatigue life is observed. |
| first_indexed | 2024-03-13T06:15:12Z |
| format | Article |
| id | doaj.art-083b7158bed8450e8856adaae01ca3eb |
| institution | Directory Open Access Journal |
| issn | 2666-3597 |
| language | English |
| last_indexed | 2024-03-13T06:15:12Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Forces in Mechanics |
| spelling | doaj.art-083b7158bed8450e8856adaae01ca3eb2023-06-11T04:15:06ZengElsevierForces in Mechanics2666-35972023-05-0111100184Effect of forming strain on low cycle, high cycle and notch fatigue performance of automotive grade dual phase steels: A reviewSurajit Kumar Paul0Mechanical Engineering Department, Indian Institute of Technology Patna, Bihta, Patna 801106, IndiaIn many engineering structural applications, including car body structures, sheet metal formed components are used. A systematic investigation of the impact of forming strain on fatigue life is necessary for an accurate prediction of a formed component's fatigue life. The present work aims to determine the impact of diverse types of tensile pre-straining on high cycle fatigue (HCF), low cycle fatigue (LCF) and notch fatigue performance of automotive grade dual phase steels. In all examined pre-straining conditions, HCF life improves, LCF life deteriorates, and little change in notch fatigue life are observed. The most significant improvement in HCF life and deterioration in LCF life are observed for equi-biaxial and orthogonal tensile pre-straining conditions due to the rotation of maximum shear stress plane and the rotation of the deformation concentrated region around the hard martensite. As the strength improves during pre-straining, there is a corresponding increase in stress concentration around a notch, and as a result, no significant change in notch fatigue life is observed.http://www.sciencedirect.com/science/article/pii/S2666359723000197High cycle fatigueLow cycle fatigueNotch fatigueEndurance limitPre-strainFatigue life |
| spellingShingle | Surajit Kumar Paul Effect of forming strain on low cycle, high cycle and notch fatigue performance of automotive grade dual phase steels: A review Forces in Mechanics High cycle fatigue Low cycle fatigue Notch fatigue Endurance limit Pre-strain Fatigue life |
| title | Effect of forming strain on low cycle, high cycle and notch fatigue performance of automotive grade dual phase steels: A review |
| title_full | Effect of forming strain on low cycle, high cycle and notch fatigue performance of automotive grade dual phase steels: A review |
| title_fullStr | Effect of forming strain on low cycle, high cycle and notch fatigue performance of automotive grade dual phase steels: A review |
| title_full_unstemmed | Effect of forming strain on low cycle, high cycle and notch fatigue performance of automotive grade dual phase steels: A review |
| title_short | Effect of forming strain on low cycle, high cycle and notch fatigue performance of automotive grade dual phase steels: A review |
| title_sort | effect of forming strain on low cycle high cycle and notch fatigue performance of automotive grade dual phase steels a review |
| topic | High cycle fatigue Low cycle fatigue Notch fatigue Endurance limit Pre-strain Fatigue life |
| url | http://www.sciencedirect.com/science/article/pii/S2666359723000197 |
| work_keys_str_mv | AT surajitkumarpaul effectofformingstrainonlowcyclehighcycleandnotchfatigueperformanceofautomotivegradedualphasesteelsareview |