naa a22 4500 510769853 CHVBK 20180411083209.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11837-012-0485-z doi (NATIONALLICENCE)springer-10.1007/s11837-012-0485-z Influence of Microstructure Representation on Flow Stress and Grain Size Prediction in Through-Process Modeling of AA5182 Sheet Production [Elektronische Daten] [Johannes Lohmar, Markus Bambach, Kai Karhausen] Integrated computational materials engineering is an up to date method for developing new materials and optimizing complete process chains. In the simulation of a process chain, material models play a central role as they capture the response of the material to external process conditions. While much effort is put into their development and improvement, less attention is paid to their implementation, which is problematic because the representation of microstructure in the model has a decisive influence on modeling accuracy and calculation speed. The aim of this article is to analyze the influence of different microstructure representation concepts on the prediction of flow stress and microstructure evolution when using the same set of material equations. Scalar, tree-based and cluster-based concepts are compared for a multi-stage rolling process of an AA5182 alloy. It was found that implementation influences the predicted flow stress and grain size, in particular in the regime of coupled hardening and softening. TMS, 2012 Lohmar Johannes Institute of Metal Forming, RWTH Aachen University, Aachen, Germany aut Bambach Markus Institute of Metal Forming, RWTH Aachen University, Aachen, Germany aut Karhausen Kai Research & Development, Hydro Aluminium Rolled Products GmbH, Bonn, Germany aut JOM Springer US; http://www.springer-ny.com 65/1(2013-01-01), 93-98 1047-4838 65:1<93 2013 65 11837 https://doi.org/10.1007/s11837-012-0485-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11837-012-0485-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lohmar Johannes Institute of Metal Forming, RWTH Aachen University, Aachen, Germany aut NATIONALLICENCE 700 1- Bambach Markus Institute of Metal Forming, RWTH Aachen University, Aachen, Germany aut NATIONALLICENCE 700 1- Karhausen Kai Research & Development, Hydro Aluminium Rolled Products GmbH, Bonn, Germany aut NATIONALLICENCE 773 0- JOM Springer US; http://www.springer-ny.com 65/1(2013-01-01), 93-98 1047-4838 65:1<93 2013 65 11837 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer