TY - JOUR

T1 - Investigation of the deformation behavior of Fe-3%Si sheet metal with large grains via crystal plasticity and finite-element modeling

AU - Klusemann, Benjamin

AU - Svendsen, Bob

AU - Vehoff, Horst

PY - 2012/2

Y1 - 2012/2

N2 - The purpose of this work is the modeling and simulation of the deformation behavior of thin sheets consisting of large grains of Fe-3%Si and comparison with experiment. To this end, a crystal-plasticity-based finite-element model is developed for each grain, the grain morphology, and the specimen as a whole. The crystal plasticity model itself is rate-dependent and accounts for local dissipative hardening effects. In order to compare model predictions with experiment, the material parameters have been identified with the help of single-crystal data from [1-3]. Identified model predictions are compared with the experimental results of [4] for the deformation behavior of thin sheets of Fe-3%Si loaded incrementally in tension at room temperature. To this end, attention is restricted to the two slip families {1 1 0} and {1 1 2} expected to be active at room temperature. Comparison of model predictions for grain morphological evolution with the corresponding experimental results up to 19.5% deformation on this basis imply good agreement. In addition, model predictions for the development of the strain field and the grain reorientation field are discussed and evaluated.

AB - The purpose of this work is the modeling and simulation of the deformation behavior of thin sheets consisting of large grains of Fe-3%Si and comparison with experiment. To this end, a crystal-plasticity-based finite-element model is developed for each grain, the grain morphology, and the specimen as a whole. The crystal plasticity model itself is rate-dependent and accounts for local dissipative hardening effects. In order to compare model predictions with experiment, the material parameters have been identified with the help of single-crystal data from [1-3]. Identified model predictions are compared with the experimental results of [4] for the deformation behavior of thin sheets of Fe-3%Si loaded incrementally in tension at room temperature. To this end, attention is restricted to the two slip families {1 1 0} and {1 1 2} expected to be active at room temperature. Comparison of model predictions for grain morphological evolution with the corresponding experimental results up to 19.5% deformation on this basis imply good agreement. In addition, model predictions for the development of the strain field and the grain reorientation field are discussed and evaluated.

KW - Body-centered cubic

KW - Crystal plasticity

KW - Deformation behavior

KW - Hardening

KW - Large grains

KW - Reorientation

KW - Size effect

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=80255122636&partnerID=8YFLogxK

U2 - 10.1016/j.commatsci.2011.03.042

DO - 10.1016/j.commatsci.2011.03.042

M3 - Journal articles

AN - SCOPUS:80255122636

VL - 52

SP - 25

EP - 32

JO - Computational Materials Science

JF - Computational Materials Science

SN - 0927-0256

IS - 1

ER -