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Interactive texture- and finite-element simulation for modelling of complex deformation processes for hcp-metals

 
: Walde, T.; Riedel, H.

Chandra, T.:
THERMEC 2003, International Conference on Processing and Manufacturing of Advanced Materials. Vol.4 : July 7 - 11, 2003, Leganés, Madrid, Spain
Uetikon: Trans Tech Publications, 2003 (Materials Science Forum 426/432)
ISBN: 0-87849-919-9
pp.3679-3684
International Conference on Processing & Manufacturing of Advanced Materials (THERMEC) <2003, Leganes>
English
Journal Article, Conference Paper
Fraunhofer IWM ()
texture; finite element; polycrystal modeling; hcp-metal

Abstract
In this work, we couple a texture model with the commercial finite element (FE) program ABAQUS/Explicit by implementing it as user supplied material subroutine (VUMAT) in the FE-code. The texture model is based on the self-consistent approach by Lebensohn and Tomé. In this model every grain is considered as an inhomogeneous inclusion in a matrix, which represents the averaged mechanical properties of the polycrystal. Since twinning is an important deformation mechanism in metals with hcp-crystal structure, it should be considered in the simulation. This is achieved by using the predominant twin reorientation scheme developed by Tom é et al..The feasibility of the approach is demonstrated by simulating the rolling of the magnesium alloy AZ31B.

: http://publica.fraunhofer.de/documents/N-18356.html