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Sensitivity Analysis of a Force and Microstructure Model for Plate Rolling

Seuren, S. and Willkomm, J. and Bücker, H. M. and Bambach, M. and Hirt, G.
Kusiak, J. and Majta, J. and Szeliga, D. (eds.) (2012):
Sensitivity Analysis of a Force and Microstructure Model for Plate Rolling.
In: Proceedings of the 14th International Conference on Metal Forming, Krakow, Poland, Wiley-VCH, [Book Section]

Abstract

Consistent modelling of multipass hot rolling processes has to account for numerous interdependencies within the process. With a growing number of passes, the sensitivity of the model output with respect to variations in the input parameters plays a vital role for assessing the accuracy and stability of the computation. This study details a new concept of using Automatic Differentiation (AD) to obtain exact derivatives of the output values of the numerical model for plate rolling. It is shown that the sensitivities of the roll force with respect to selected material and process parameters can be computed through AD technology. As use case the rolling of a plain C-Mn steel plate is analysed. The results show substantial differences in the influence characteristics of particular input parameters.

Item Type: Book Section
Erschienen: 2012
Editors: Kusiak, J. and Majta, J. and Szeliga, D.
Creators: Seuren, S. and Willkomm, J. and Bücker, H. M. and Bambach, M. and Hirt, G.
Title: Sensitivity Analysis of a Force and Microstructure Model for Plate Rolling
Language: English
Abstract:

Consistent modelling of multipass hot rolling processes has to account for numerous interdependencies within the process. With a growing number of passes, the sensitivity of the model output with respect to variations in the input parameters plays a vital role for assessing the accuracy and stability of the computation. This study details a new concept of using Automatic Differentiation (AD) to obtain exact derivatives of the output values of the numerical model for plate rolling. It is shown that the sensitivities of the roll force with respect to selected material and process parameters can be computed through AD technology. As use case the rolling of a plain C-Mn steel plate is analysed. The results show substantial differences in the influence characteristics of particular input parameters.

Title of Book: Proceedings of the 14th International Conference on Metal Forming
Place of Publication: Krakow, Poland
Publisher: Wiley-VCH
Uncontrolled Keywords: Plate Rolling, Roll Force Model, Slab Method, Microstructure Evolution, Sensitivity Analysis, Automatic Differentiation, ADiMat, Matlab
Divisions: 20 Department of Computer Science > Scientific Computing
20 Department of Computer Science
Event Title: 14th International Conference on Metal Forming (Metal Forming 2012)
Event Location: Krakow, Poland
Date Deposited: 16 May 2013 11:27
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