Numerical Simulation and Experimental Study of Shot Peening on Rough Surface based on FEM-DEM
A finite element and discrete element （FEM-DEM） coupling model for shot peening on rough surface is proposed in consideration of the surface roughness of non-peened specimen. The peened and non-peened 45# steel specimens are prepared，and their residual stress on the surface and subsurface are measur...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2021-07-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.07.023 |
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| _version_ | 1841547278728298496 |
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| author | Mingming Deng Guixi Peng Ming Zheng Changjiang Zhou |
| author_facet | Mingming Deng Guixi Peng Ming Zheng Changjiang Zhou |
| author_sort | Mingming Deng |
| collection | DOAJ |
| description | A finite element and discrete element （FEM-DEM） coupling model for shot peening on rough surface is proposed in consideration of the surface roughness of non-peened specimen. The peened and non-peened 45# steel specimens are prepared，and their residual stress on the surface and subsurface are measured. The measured results are used to verify the proposed model，and the effects of shot peening process parameters on the residual stress on the subsurface are studied. The results show that increasing the surface coverage and shot peening intensity can increase the peak value of the compressive residual stress，especially the impact of shot peening is more significant. With the same surface coverage and shot peening intensity，the smaller diameter shot can increase the peak value of the compressive residual stress，while the thickness of the compressive residual stress increases as the diameter of shot becomes larger. If the surface roughness before shot peening is too high，the effect of shot peening can be enhanced by increasing the surface coverage. The research provides a certain theoretical basis for the optimization of shot peening on the rough surface. |
| format | Article |
| id | doaj-art-3745c695bfa3416fa2c8d4505dda8903 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2021-07-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-3745c695bfa3416fa2c8d4505dda89032025-01-10T14:48:39ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392021-07-014515616018848293Numerical Simulation and Experimental Study of Shot Peening on Rough Surface based on FEM-DEMMingming DengGuixi PengMing ZhengChangjiang ZhouA finite element and discrete element （FEM-DEM） coupling model for shot peening on rough surface is proposed in consideration of the surface roughness of non-peened specimen. The peened and non-peened 45# steel specimens are prepared，and their residual stress on the surface and subsurface are measured. The measured results are used to verify the proposed model，and the effects of shot peening process parameters on the residual stress on the subsurface are studied. The results show that increasing the surface coverage and shot peening intensity can increase the peak value of the compressive residual stress，especially the impact of shot peening is more significant. With the same surface coverage and shot peening intensity，the smaller diameter shot can increase the peak value of the compressive residual stress，while the thickness of the compressive residual stress increases as the diameter of shot becomes larger. If the surface roughness before shot peening is too high，the effect of shot peening can be enhanced by increasing the surface coverage. The research provides a certain theoretical basis for the optimization of shot peening on the rough surface.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.07.023Rough surfaceShot peeningFEM-DEMResidual stress |
| spellingShingle | Mingming Deng Guixi Peng Ming Zheng Changjiang Zhou Numerical Simulation and Experimental Study of Shot Peening on Rough Surface based on FEM-DEM Jixie chuandong Rough surface Shot peening FEM-DEM Residual stress |
| title | Numerical Simulation and Experimental Study of Shot Peening on Rough Surface based on FEM-DEM |
| title_full | Numerical Simulation and Experimental Study of Shot Peening on Rough Surface based on FEM-DEM |
| title_fullStr | Numerical Simulation and Experimental Study of Shot Peening on Rough Surface based on FEM-DEM |
| title_full_unstemmed | Numerical Simulation and Experimental Study of Shot Peening on Rough Surface based on FEM-DEM |
| title_short | Numerical Simulation and Experimental Study of Shot Peening on Rough Surface based on FEM-DEM |
| title_sort | numerical simulation and experimental study of shot peening on rough surface based on fem dem |
| topic | Rough surface Shot peening FEM-DEM Residual stress |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.07.023 |
| work_keys_str_mv | AT mingmingdeng numericalsimulationandexperimentalstudyofshotpeeningonroughsurfacebasedonfemdem AT guixipeng numericalsimulationandexperimentalstudyofshotpeeningonroughsurfacebasedonfemdem AT mingzheng numericalsimulationandexperimentalstudyofshotpeeningonroughsurfacebasedonfemdem AT changjiangzhou numericalsimulationandexperimentalstudyofshotpeeningonroughsurfacebasedonfemdem |