Simulating shot peening based on a dislocation density-based model with a novel time integration algorithm
Shot peening has been widely used in processing various components since it can bring in residual compressive stress and effectively refine the grain size of impacted area. To simulate grain refinement induced by shot peening, the dislocation density-based model has recently been introduced, however...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
2024
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| Online Access: | http://hdl.handle.net/20.500.11937/94983 |
| _version_ | 1848765952964952064 |
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| author | Ren, F.H. Zhao, M.H. Lu, Chunsheng Zhang, J.W. Wang, B.B. |
| author_facet | Ren, F.H. Zhao, M.H. Lu, Chunsheng Zhang, J.W. Wang, B.B. |
| author_sort | Ren, F.H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Shot peening has been widely used in processing various components since it can bring in residual compressive stress and effectively refine the grain size of impacted area. To simulate grain refinement induced by shot peening, the dislocation density-based model has recently been introduced, however, the existing time integration algorithm is not stable and usually leads to divergent solutions in iterations. In this paper, a novel time integration algorithm is proposed for the dislocation density-based model. Based upon the algorithm, numerical studies on multi-shot AISI4340 steel are carried out with different coverages, velocities, shot diameters, and peening angles. It is shown that the method converges faster than the two-level iteration method, and the predicted dislocation cell structure sizes after shooting are consistent with experimental results. Besides that, increasing coverage can refine the size of a dislocation cell, which is closely dependent on the shot diameter, impact velocity, and angle. Thus, to achieve the desired grain size or the depth of refinement, it is necessary to take the shot diameter and velocity into account simultaneously. |
| first_indexed | 2025-11-14T11:43:26Z |
| format | Journal Article |
| id | curtin-20.500.11937-94983 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:43:26Z |
| publishDate | 2024 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-949832024-05-24T09:01:52Z Simulating shot peening based on a dislocation density-based model with a novel time integration algorithm Ren, F.H. Zhao, M.H. Lu, Chunsheng Zhang, J.W. Wang, B.B. Shot peening has been widely used in processing various components since it can bring in residual compressive stress and effectively refine the grain size of impacted area. To simulate grain refinement induced by shot peening, the dislocation density-based model has recently been introduced, however, the existing time integration algorithm is not stable and usually leads to divergent solutions in iterations. In this paper, a novel time integration algorithm is proposed for the dislocation density-based model. Based upon the algorithm, numerical studies on multi-shot AISI4340 steel are carried out with different coverages, velocities, shot diameters, and peening angles. It is shown that the method converges faster than the two-level iteration method, and the predicted dislocation cell structure sizes after shooting are consistent with experimental results. Besides that, increasing coverage can refine the size of a dislocation cell, which is closely dependent on the shot diameter, impact velocity, and angle. Thus, to achieve the desired grain size or the depth of refinement, it is necessary to take the shot diameter and velocity into account simultaneously. 2024 Journal Article http://hdl.handle.net/20.500.11937/94983 10.1016/j.ijsolstr.2024.112823 restricted |
| spellingShingle | Ren, F.H. Zhao, M.H. Lu, Chunsheng Zhang, J.W. Wang, B.B. Simulating shot peening based on a dislocation density-based model with a novel time integration algorithm |
| title | Simulating shot peening based on a dislocation density-based model with a novel time integration algorithm |
| title_full | Simulating shot peening based on a dislocation density-based model with a novel time integration algorithm |
| title_fullStr | Simulating shot peening based on a dislocation density-based model with a novel time integration algorithm |
| title_full_unstemmed | Simulating shot peening based on a dislocation density-based model with a novel time integration algorithm |
| title_short | Simulating shot peening based on a dislocation density-based model with a novel time integration algorithm |
| title_sort | simulating shot peening based on a dislocation density-based model with a novel time integration algorithm |
| url | http://hdl.handle.net/20.500.11937/94983 |