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Experimental characterization and finite element modeling of through thickness deformation gradient in a cold rolled zirconium sheet
G. Kumar, A. Lodh, , R. Singh, D. Srivastava, G.K. Dey, I. Samajdar
Published in Elsevier Ltd
Volume: 19
Pages: 176 - 190
A commercial Zirconium alloy was subjected to different thickness reductions (20%, 40% and 60%) by cold rolling. A through-thickness gradient in microstructure, crystallographic texture and residual stress was observed. This gradient was till 1/8th of the specimen thickness, and implied a corresponding anisotropy in the imposed strain state. An elasto-plastic FE (finite element) model was developed to capture such through thickness deformation gradients. A reasonably good agreement was observed between the experimental and predicted residual stress distributions when the material anisotropy was accounted for. Through-thickness residual stress evolution was shown to be significantly affected by material anisotropy and to a lesser extent by the rolling parameters (coefficient of friction and rotational speed). © 2017 CIRP
About the journal
JournalData powered by TypesetCIRP Journal of Manufacturing Science and Technology
PublisherData powered by TypesetElsevier Ltd