Instantiation of crystal plasticity simulations for micromechanical modelling with direct input from microstructural data collected at light sources

Pokharel, Reeju; Lebensohn, Ricardo A.

doi:10.1016/j.scriptamat.2017.01.025

Title: Instantiation of crystal plasticity simulations for micromechanical modelling with direct input from microstructural data collected at light sources

Journal Article · Wed Feb 08 00:00:00 EST 2017 · Scripta Materialia

DOI:https://doi.org/10.1016/j.scriptamat.2017.01.025· OSTI ID:1460635

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Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Novel non-destructive characterization techniques performed at light sources provide previously inaccessible 3-D mesoscopic information on the deformation of polycrystalline materials. One major difficulty for interpretation of these experiments through micromechanical modelling is the likelihood that processing and/or mounting the sample introduce residual stresses in the specimen. These stresses need to be incorporated into crystal plasticity formulations, for these models to operate directly from microstructural images and be predictive. To achieve this, the initial micromechanical state of each voxel needs to be specified. Here in this letter we present a method for incorporating grain-averaged residual stresses for instantiation of crystal plasticity simulations.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1460635

Alternate ID(s):: OSTI ID: 1398052

Report Number(s):: LA-UR-16-29549

Journal Information:: Scripta Materialia, Vol. 132, Issue C; ISSN 1359-6462

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 23 works

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Cited By (2)

Machine learning enabled surrogate crystal plasticity model for spatially resolved 3D orientation evolution under uniaxial tension Pandey, Anup; Pokharel, Reeju Unpublished https://doi.org/10.13140/rg.2.2.25872.76801	text	January 2020
Analysis of Grain-Resolved Data from Three-Dimensional X-Ray Diffraction Microscopy in the Elastic and Plastic Regimes Juul, Nicolai Ytterdal; Oddershede, Jette; Winther, Grethe JOM, Vol. 72, Issue 1 https://doi.org/10.1007/s11837-019-03829-6	journal	October 2019

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36 MATERIALS SCIENCE
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Title: Instantiation of crystal plasticity simulations for micromechanical modelling with direct input from microstructural data collected at light sources

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