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dc.contributor.authorBernier, Joel V.
dc.contributor.authorMiller, Matthew P.
dc.identifier.citationJournal of Applied Cyrstallography (2006). 39, 358-368en_US
dc.description.abstractA salient manifestation of anisotropy in the mechanical response of polycrystal- line materials is the inhomogeneous partitioning of elastic strains over the aggregate. For bulk samples, the distributions of these intergranular strains are expected to have a strong functional dependence on grain orientations. It is then useful to formulate a mean lattice strain distribution function (LSDF) over the orientation space, which serves to characterize the micromechanical state of the aggregate. Orientation-dependent intergranular stresses may be recovered from the LSDF via a constitutive assumption, such as anisotropic linear elasticity. While the LSDF may be determined directly from simulation data, its experimental determination relies on solving an inverse problem that is similar in character to the fundamental problem of texture analysis. In this paper, a versatile and robust direct method for determining an LSDF from strain pole figures is presented. The effectiveness of this method is demonstrated using synthetic strain pole figures from a model LSDF obtained from the simulated uniaxial deformation of a 1000-crystal aggregate.en_US
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dc.publisherInternational Union of Crystallographyen_US
dc.subjectorientation-dependent elastic strainsen_US
dc.subjectorientation-dependent stressesen_US
dc.subjectpolycrystalline materialsen_US
dc.subjectstrain pole figuresen_US
dc.titleA direct method for the determination of the mean orientation-dependent elasticen_US

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