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FE‐Simulation based analysis of residual stresses and strain localizations in ECAP processing
Author(s) -
Horn Tobias,
Silbermann Christian,
Ihlemann Jörn
Publication year - 2017
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201710124
Subject(s) - pressing , residual stress , materials science , finite element method , von mises yield criterion , shear stress , matrix (chemical analysis) , strain (injury) , residual , tensor (intrinsic definition) , shear (geology) , composite material , metallurgy , structural engineering , geometry , mathematics , engineering , algorithm , anatomy , medicine
Equal Channel Angular Pressing (ECAP) is a method to introduce severe plastic deformation into a metal billet without changing it's profile. In special cases the strain localizes and so‐called shear and matrix bands are induced. These localizations are simulated and analyzed with respect to the residual stresses by using the finite element method. We found that in contrast to the components of the stress tensor, only a small difference in the von‐Mises stress between shear and matrix bands occurs. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)