Clausmeyer, T.; van den Boogaard, T.; Noman, M.; Gershteyn, G.; Scharper, M. et al.: Phenomenological modeling of anisotropy induced by evolution of the dislocation structure on the macroscopic and microscopic scale. In: International Journal of Material Forming 4 (2011), Nr. 2, S. 141-154. DOI:
https://doi.org/10.1007/s12289-010-1017-4
Zusammenfassung: |
This work focuses on the modeling of the evolution of anisotropy induced by the development of the dislocation microstructure. A model formulated at the engineering scale in the context of classical metal plasticity and a model formulated in the context of crystal plasticity are presented. Images obtained by transmission-electron microscopy (TEM) show the influence of the strain path on the evolution of anisotropy for the case of two common materials used in sheet metal forming, DC06 and AA6016-T4. Both models are capable of accounting for the transient behavior observed after changes in loading path for fcc and bcc metals. The evolution of the internal variables of the models is correlated with the evolution of the dislocation structure observed by TEM investigations.
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Lizenzbestimmungen: |
CC BY-NC 4.0 Unported - https://creativecommons.org/licenses/by-nc/4.0/
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Publikationstyp: |
Article |
Publikationsstatus: |
publishedVersion |
Erstveröffentlichung: |
2011 |
Schlagwörter (englisch): |
Induced flow anisotropy, Microstructural evolution, Bcc metals, Common materials, Cross hardening, Crystal plasticity, Dislocation microstructures, Dislocation structures, Flow anisotropy, Internal variables, Loading path, Material modeling, Metal plasticity, Micro-structural, Microscopic scale, Phenomenological modeling, Strain paths, Transient behavior, Work Focus, Anisotropy, Behavioral research, Dislocations (crystals), Metal forming, Sheet metal, Microstructural evolution
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Fachliche Zuordnung (DDC): |
620 | Ingenieurwissenschaften und Maschinenbau
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