Stress intensity factors for surface cracks in round bar under single and combined loadings
This paper numerically discusses stress in-tensity factor (SIF) calculations for surface cracks in round bars subjected to single and combined loadings. Different crack aspect ratios, a/b, ranging from 0.0 to 1.2 and the relative crack depth, a/D, in the range of 0.1 to 0.6 are considered. Since the...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Springer International Publishing
2012
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| Online Access: | http://eprints.uthm.edu.my/3709/1/AJ%202017%20%2898%29%20Stress%20intensity%20factors%20for%20surface%20cracks.pdf |
| _version_ | 1796868888198119424 |
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| author | Ismail, Al Emran Ariffin, A.K. Abdullah, S. Ghazali, M.J. |
| author_facet | Ismail, Al Emran Ariffin, A.K. Abdullah, S. Ghazali, M.J. |
| author_sort | Ismail, Al Emran |
| collection | UTHM |
| description | This paper numerically discusses stress in-tensity factor (SIF) calculations for surface cracks in round bars subjected to single and combined loadings. Different crack aspect ratios, a/b, ranging from 0.0 to 1.2 and the relative crack depth, a/D, in the range of 0.1 to 0.6 are considered. Since the torsion loading is non-symmetrical, the whole finite element model has been constructed, and the loadings have been remotely applied to the model. The equivalent SIF, F∗EQ is then used to combine the individual SIF from the bending or tension with torsion loadings. Then, it is compared with the combined SIF, F∗FE obtained numerically using the finite element analysis under similar loadings. It is found that the equivalent SIF method successfully predicts the combined SIF, F∗EQ for Mode I when compared with F∗FE . However, some discrepancies between the results, determined from the two different approaches, occur when FIII is involved. Meanwhile, it is also noted that the F∗FE is higher than the F∗EQ due to the difference in crack face interactions and de-formations. |
| first_indexed | 2024-03-05T21:46:34Z |
| format | Article |
| id | uthm.eprints-3709 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | English |
| last_indexed | 2024-03-05T21:46:34Z |
| publishDate | 2012 |
| publisher | Springer International Publishing |
| record_format | dspace |
| spelling | uthm.eprints-37092021-11-21T08:12:06Z http://eprints.uthm.edu.my/3709/ Stress intensity factors for surface cracks in round bar under single and combined loadings Ismail, Al Emran Ariffin, A.K. Abdullah, S. Ghazali, M.J. TA401-492 Materials of engineering and construction. Mechanics of materials This paper numerically discusses stress in-tensity factor (SIF) calculations for surface cracks in round bars subjected to single and combined loadings. Different crack aspect ratios, a/b, ranging from 0.0 to 1.2 and the relative crack depth, a/D, in the range of 0.1 to 0.6 are considered. Since the torsion loading is non-symmetrical, the whole finite element model has been constructed, and the loadings have been remotely applied to the model. The equivalent SIF, F∗EQ is then used to combine the individual SIF from the bending or tension with torsion loadings. Then, it is compared with the combined SIF, F∗FE obtained numerically using the finite element analysis under similar loadings. It is found that the equivalent SIF method successfully predicts the combined SIF, F∗EQ for Mode I when compared with F∗FE . However, some discrepancies between the results, determined from the two different approaches, occur when FIII is involved. Meanwhile, it is also noted that the F∗FE is higher than the F∗EQ due to the difference in crack face interactions and de-formations. Springer International Publishing 2012 Article PeerReviewed text en http://eprints.uthm.edu.my/3709/1/AJ%202017%20%2898%29%20Stress%20intensity%20factors%20for%20surface%20cracks.pdf Ismail, Al Emran and Ariffin, A.K. and Abdullah, S. and Ghazali, M.J. (2012) Stress intensity factors for surface cracks in round bar under single and combined loadings. Meccanica, 47 (5). pp. 1141-1156. ISSN 0025-6455 http://dx.doi.org/10.1007/s11012-011-9500-7 |
| spellingShingle | TA401-492 Materials of engineering and construction. Mechanics of materials Ismail, Al Emran Ariffin, A.K. Abdullah, S. Ghazali, M.J. Stress intensity factors for surface cracks in round bar under single and combined loadings |
| title | Stress intensity factors for surface cracks in round bar under single and combined loadings |
| title_full | Stress intensity factors for surface cracks in round bar under single and combined loadings |
| title_fullStr | Stress intensity factors for surface cracks in round bar under single and combined loadings |
| title_full_unstemmed | Stress intensity factors for surface cracks in round bar under single and combined loadings |
| title_short | Stress intensity factors for surface cracks in round bar under single and combined loadings |
| title_sort | stress intensity factors for surface cracks in round bar under single and combined loadings |
| topic | TA401-492 Materials of engineering and construction. Mechanics of materials |
| url | http://eprints.uthm.edu.my/3709/1/AJ%202017%20%2898%29%20Stress%20intensity%20factors%20for%20surface%20cracks.pdf |
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