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A rate-independent 'stack' model of a polycrystalline aggregate
, , P. Venkitanarayanan
Published in Trans Tech Publications Ltd
Volume: 702-703
Pages: 192 - 195
The 'stack' model of a rate-independent rigid-plastic polycrystalline material is developed. In the 'stack' model, stacks of N neighboring sub-grain domains collectively accommodate the imposed macroscopic deformation while enforcing the velocity and traction continuity condition with its neighbors. The developed 'stack' model is applied to simulate the two-dimensional polycrystalline aggregate under macroscopically imposed plane-strain tension. The effect of inter- and intra-grain interactions on qualitative and quantitative variations in the predicted macroscopic stress-strain response and texture evolution are presented. The diminishing trend of constraint on individual sub-grain domains and texturing rate with stack size N, and saturation for large N also given. © (2012) Trans Tech Publications, Switzerland.
About the journal
JournalMaterials Science Forum
PublisherTrans Tech Publications Ltd
Open AccessNo