Plastic forming processes of transverse non-homogeneous composite metallic sheets
In this work an analysis of the radial stress and velocity fields is performed according to the J2 flow theory for a rigid/perfectly plastic material. The flow field is used to simulate the forming processes of sheets. The significant achievement of this paper is the generalization of the work by Na...
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| Format: | Article |
| Language: | English |
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De Gruyter
2021-01-01
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| Series: | Open Engineering |
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| Online Access: | https://doi.org/10.1515/eng-2021-0029 |
| _version_ | 1818744709283053568 |
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| author | Davidi Gal |
| author_facet | Davidi Gal |
| author_sort | Davidi Gal |
| collection | DOAJ |
| description | In this work an analysis of the radial stress and velocity fields is performed according to the J2 flow theory for a rigid/perfectly plastic material. The flow field is used to simulate the forming processes of sheets. The significant achievement of this paper is the generalization of the work by Nadai & Hill for homogenous material in the sense of its yield stress, to a material with general transverse non-homogeneity. In Addition, a special un-coupled form of the system of equations is obtained where the task of solving it reduces to the solution of a single non-linear algebraic differential equation for the shear stress. A semi-analytical solution is attained solving numerically this equation and the rest of the stresses term together with the velocity field is calculated analytically. As a case study a tri-layered symmetrical sheet is chosen for two configurations: soft inner core and hard coating, hard inner core and soft coating. |
| first_indexed | 2024-12-18T02:48:37Z |
| format | Article |
| id | doaj.art-65d049c124194263a6e7bb3ba44df219 |
| institution | Directory Open Access Journal |
| issn | 2391-5439 |
| language | English |
| last_indexed | 2024-12-18T02:48:37Z |
| publishDate | 2021-01-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Engineering |
| spelling | doaj.art-65d049c124194263a6e7bb3ba44df2192022-12-21T21:23:31ZengDe GruyterOpen Engineering2391-54392021-01-0111129430210.1515/eng-2021-0029Plastic forming processes of transverse non-homogeneous composite metallic sheetsDavidi Gal0CFD-FEM engineering consultancy, 30/14 Leon Bloom st., Haifa33852, Israel; Tel.: +972 507638541In this work an analysis of the radial stress and velocity fields is performed according to the J2 flow theory for a rigid/perfectly plastic material. The flow field is used to simulate the forming processes of sheets. The significant achievement of this paper is the generalization of the work by Nadai & Hill for homogenous material in the sense of its yield stress, to a material with general transverse non-homogeneity. In Addition, a special un-coupled form of the system of equations is obtained where the task of solving it reduces to the solution of a single non-linear algebraic differential equation for the shear stress. A semi-analytical solution is attained solving numerically this equation and the rest of the stresses term together with the velocity field is calculated analytically. As a case study a tri-layered symmetrical sheet is chosen for two configurations: soft inner core and hard coating, hard inner core and soft coating.https://doi.org/10.1515/eng-2021-0029plastic forming processalgebraic differential equationsheet forming |
| spellingShingle | Davidi Gal Plastic forming processes of transverse non-homogeneous composite metallic sheets Open Engineering plastic forming process algebraic differential equation sheet forming |
| title | Plastic forming processes of transverse non-homogeneous composite metallic sheets |
| title_full | Plastic forming processes of transverse non-homogeneous composite metallic sheets |
| title_fullStr | Plastic forming processes of transverse non-homogeneous composite metallic sheets |
| title_full_unstemmed | Plastic forming processes of transverse non-homogeneous composite metallic sheets |
| title_short | Plastic forming processes of transverse non-homogeneous composite metallic sheets |
| title_sort | plastic forming processes of transverse non homogeneous composite metallic sheets |
| topic | plastic forming process algebraic differential equation sheet forming |
| url | https://doi.org/10.1515/eng-2021-0029 |
| work_keys_str_mv | AT davidigal plasticformingprocessesoftransversenonhomogeneouscompositemetallicsheets |