Suckow, Timon ; Groche, Peter
Hrsg.: Lukasz Madej, Mateusz Sitko ; Perzynski, Konrad (2023)
Damage prediction in roll forming of the high strength aluminum alloy AA7075.
26th International Conference on Material Forming (ESAFORM 2023). Kraków, Poland (19.04.2023-21.04.2023)
doi: 10.21741/9781644902479-86
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Abstract. The high-strength AA7075 alloy offers great potential for lightweight construction thanks to its high specific strength. However, high strength and low ductility are challenging for forming the material in the peak-aged T6-condition in terms of material failure and springback. Therefore, this alloy is usually formed in temperature-supported process routes, which poses major challenges for process design. For cold forming of the alloy in the T6-condition, a reliable prediction of material failure is required in terms of process design. Within this study, this is achieved by applying the modified Mohr-Coulomb (MMC) criterion and an increment based damage evolution rule to the FE-model. To validate the failure prediction and verify the general applicability to different profile geometries, two U-profiles and a V-profile are roll formed. Failure occurs during forming for all profile geometries and the experimental results show a good agreement with the failure prediction. The quality of the damage prediction strongly depends on the calibration for the MMC criterion and the setup of the FE-model, depending on the mesh size and the element type used.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2023 |
| Herausgeber: | Lukasz Madej, Mateusz Sitko ; Perzynski, Konrad |
| Autor(en): | Suckow, Timon ; Groche, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Damage prediction in roll forming of the high strength aluminum alloy AA7075 |
| Sprache: | Englisch |
| Publikationsjahr: | 2023 |
| Ort: | Millersville PA, USA |
| Verlag: | Materials Research Forum LLC |
| Buchtitel: | Material Forming - the 26th International Conference on Material Forming (ESAFORM 2023) |
| Veranstaltungstitel: | 26th International Conference on Material Forming (ESAFORM 2023) |
| Veranstaltungsort: | Kraków, Poland |
| Veranstaltungsdatum: | 19.04.2023-21.04.2023 |
| DOI: | 10.21741/9781644902479-86 |
| Kurzbeschreibung (Abstract): | Abstract. The high-strength AA7075 alloy offers great potential for lightweight construction thanks to its high specific strength. However, high strength and low ductility are challenging for forming the material in the peak-aged T6-condition in terms of material failure and springback. Therefore, this alloy is usually formed in temperature-supported process routes, which poses major challenges for process design. For cold forming of the alloy in the T6-condition, a reliable prediction of material failure is required in terms of process design. Within this study, this is achieved by applying the modified Mohr-Coulomb (MMC) criterion and an increment based damage evolution rule to the FE-model. To validate the failure prediction and verify the general applicability to different profile geometries, two U-profiles and a V-profile are roll formed. Failure occurs during forming for all profile geometries and the experimental results show a good agreement with the failure prediction. The quality of the damage prediction strongly depends on the calibration for the MMC criterion and the setup of the FE-model, depending on the mesh size and the element type used. |
| Freie Schlagworte: | roll forming, aluminum, 7075, material failure, damage, FEM |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Produktionstechnik und Umformmaschinen (PtU) |
| Hinterlegungsdatum: | 26 Apr 2023 05:45 |
| Letzte Änderung: | 26 Apr 2023 09:16 |
| PPN: | 507285514 |
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