Effect of material scatter on the plastic behavior and stretchability in sheet metal forming
| Autor: | E.H. Atzema, Y. An, A.H. van den Boogaard, J.H. Wiebenga, Henk Vegter |
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| Přispěvatelé: | Faculty of Engineering Technology |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Materials science
business.industry Scattering IR-87356 Metals and Alloys Mechanical engineering Forming processes Structural engineering Industrial and Manufacturing Engineering Finite element method Computer Science Applications Robust design Robustness (computer science) Modeling and Simulation visual_art Ceramics and Composites visual_art.visual_art_medium business Anisotropy Sheet metal Material properties METIS-297962 |
| Zdroj: | Journal of materials processing technology, 214(2), 238-252. Elsevier |
| ISSN: | 0924-0136 |
| Popis: | Robust design of forming processes is gaining attention throughout the industry. To analyze the robustness of a sheet metal forming process using Finite Element (FE) simulations, an accurate input in terms of parameter scatter is required. This paper presents a pragmatic, accurate and economic approach for measuring and modeling one of the main inputs, i.e. material properties and its associated scattering. For the purpose of this research, samples of 41 coils of a forming steel DX54D+Z (EN 10327:2004) from multiple casts have been collected. Fully determining the stochastic material behavior to the required accuracy for modeling in FE simulations would require many mechanical experiments. Instead, the present work combines mechanical testing and texture analysis to limit the required effort. Moreover, use is made of the correlations between the material parameters to efficiently model the material property scatter for use in the numerical robustness analysis. The proposed approach is validated by the forming of a series of cup products using the collected material. The observed experimental scatter can be reproduced efficiently using FE simulations, demonstrating the potential of the modeling approach and robustness analysis in general. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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