Modeling and simulation of deformation behavior, orientation gradient development and heterogeneous hardening in thin sheets with coarse texture

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Modeling and simulation of deformation behavior, orientation gradient development and heterogeneous hardening in thin sheets with coarse texture. / Klusemann, Benjamin; Svendsen, Bob; Vehoff, Horst.
in: International Journal of Plasticity, Jahrgang 50, 11.2013, S. 109-126.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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@article{20f63fbafdce4cd7aca6d0d93e6287c1,
title = "Modeling and simulation of deformation behavior, orientation gradient development and heterogeneous hardening in thin sheets with coarse texture",
abstract = "The purpose of this work is the modeling of the deformation behavior and orientation gradient development in a highly anisotropic thin metal sheet and comparison with experiment. This sheet consists of a single layer of {"}large{"} Fe-3%Si grains exhibiting a coarse texture. Since such materials are highly heterogeneous, they are modeled by combining single-crystal plasticity for each grain with the finite-element method for the grain morphology and specimen as a whole. The single-crystal model is rate-dependent, accounts for (local) dissipative hardening effects, and has been identified with the help of single-crystal data. In previous work Klusemann et al. (2012b), model predictions for the evolution of the specimen geometry and grain morphology during tension loading to large deformation have been shown to agree reasonably well with the corresponding experimental results of Henning and Vehoff (2005). In the current work, model predictions for the development of orientation gradients in the specimen under different modeling assumptions (e.g., active glide-system family) are compared with EBSD-based experimental results of Henning and Vehoff (2005). Model predictions for the development of geometrically necessary dislocations are also discussed. As well, additional measures of local orientation evolution such as reorientation are examined and compared with the orientation gradient picture. In addition, we examine the effect of additional grain boundary strengthening related to grain boundary misorientation and grain size and the effect of additional GND-based kinematic hardening.",
keywords = "Crystal plasticity, GND-based kinematic hardening, Grain boundary strengthening, Grain morphology, Oligocrystal, Orientation gradient, Reorientation, Engineering",
author = "Benjamin Klusemann and Bob Svendsen and Horst Vehoff",
year = "2013",
month = nov,
doi = "10.1016/j.ijplas.2013.04.004",
language = "English",
volume = "50",
pages = "109--126",
journal = "International Journal of Plasticity",
issn = "0749-6419",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Modeling and simulation of deformation behavior, orientation gradient development and heterogeneous hardening in thin sheets with coarse texture

AU - Klusemann, Benjamin

AU - Svendsen, Bob

AU - Vehoff, Horst

PY - 2013/11

Y1 - 2013/11

N2 - The purpose of this work is the modeling of the deformation behavior and orientation gradient development in a highly anisotropic thin metal sheet and comparison with experiment. This sheet consists of a single layer of "large" Fe-3%Si grains exhibiting a coarse texture. Since such materials are highly heterogeneous, they are modeled by combining single-crystal plasticity for each grain with the finite-element method for the grain morphology and specimen as a whole. The single-crystal model is rate-dependent, accounts for (local) dissipative hardening effects, and has been identified with the help of single-crystal data. In previous work Klusemann et al. (2012b), model predictions for the evolution of the specimen geometry and grain morphology during tension loading to large deformation have been shown to agree reasonably well with the corresponding experimental results of Henning and Vehoff (2005). In the current work, model predictions for the development of orientation gradients in the specimen under different modeling assumptions (e.g., active glide-system family) are compared with EBSD-based experimental results of Henning and Vehoff (2005). Model predictions for the development of geometrically necessary dislocations are also discussed. As well, additional measures of local orientation evolution such as reorientation are examined and compared with the orientation gradient picture. In addition, we examine the effect of additional grain boundary strengthening related to grain boundary misorientation and grain size and the effect of additional GND-based kinematic hardening.

AB - The purpose of this work is the modeling of the deformation behavior and orientation gradient development in a highly anisotropic thin metal sheet and comparison with experiment. This sheet consists of a single layer of "large" Fe-3%Si grains exhibiting a coarse texture. Since such materials are highly heterogeneous, they are modeled by combining single-crystal plasticity for each grain with the finite-element method for the grain morphology and specimen as a whole. The single-crystal model is rate-dependent, accounts for (local) dissipative hardening effects, and has been identified with the help of single-crystal data. In previous work Klusemann et al. (2012b), model predictions for the evolution of the specimen geometry and grain morphology during tension loading to large deformation have been shown to agree reasonably well with the corresponding experimental results of Henning and Vehoff (2005). In the current work, model predictions for the development of orientation gradients in the specimen under different modeling assumptions (e.g., active glide-system family) are compared with EBSD-based experimental results of Henning and Vehoff (2005). Model predictions for the development of geometrically necessary dislocations are also discussed. As well, additional measures of local orientation evolution such as reorientation are examined and compared with the orientation gradient picture. In addition, we examine the effect of additional grain boundary strengthening related to grain boundary misorientation and grain size and the effect of additional GND-based kinematic hardening.

KW - Crystal plasticity

KW - GND-based kinematic hardening

KW - Grain boundary strengthening

KW - Grain morphology

KW - Oligocrystal

KW - Orientation gradient

KW - Reorientation

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84882253813&partnerID=8YFLogxK

U2 - 10.1016/j.ijplas.2013.04.004

DO - 10.1016/j.ijplas.2013.04.004

M3 - Journal articles

AN - SCOPUS:84882253813

VL - 50

SP - 109

EP - 126

JO - International Journal of Plasticity

JF - International Journal of Plasticity

SN - 0749-6419

ER -

DOI

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