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김성엽

Kim, Sung Youb
Computational Advanced Nanomechanics Lab.
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dc.citation.endPage 19 -
dc.citation.startPage 1 -
dc.citation.title JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS -
dc.citation.volume 76 -
dc.contributor.author Han, T.-S. -
dc.contributor.author Chung, S.-Y. -
dc.contributor.author Kim, Y.-W. -
dc.contributor.author Kim, Sung Youb -
dc.date.accessioned 2023-12-22T01:38:19Z -
dc.date.available 2023-12-22T01:38:19Z -
dc.date.created 2015-01-09 -
dc.date.issued 2015-03 -
dc.description.abstract It has been known for decades that crystal stress directions move toward the vertices of the single crystal yield surface (SCYS) during plastic flow of polycrystalline solids to satisfy the deformation compatibility among crystals. The alignment of crystal stress with a SCYS vertex is affected not only by plastic anisotropy, but also by other factors such as elastic anisotropy, loading direction, and grain interactions. Among the factors contributing to the degree of alignment, the effect of phase interactions on the crystal stress evolution during plastic flow has not been extensively investigated. In this research, the effect of phase interactions on the crystal stress direction evolution is investigated using simulations of an elastoplastically deforming two-phase (Cu/Fe) polycrystalline solid calibrated to a neutron diffraction experiment. By mapping the simulated crystal stresses over the crystal orientation space, crystal-orientation-dependent nonuniform partitioning of the crystal stress between phases can be observed. An analysis of the distribution of angles between the SCYS vertex and the crystal stress based on the simulation of the two-phase material shows that the crystal stress evolution pattern during plastic flow is strongly affected by phase interactions. These interactions result in low alignment and greater dispersion angles between the crystal stresses and SCYS vertices, particularly in the strong phase. -
dc.identifier.bibliographicCitation JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, v.76, pp.1 - 19 -
dc.identifier.doi 10.1016/j.jmps.2014.11.016 -
dc.identifier.issn 0022-5096 -
dc.identifier.scopusid 2-s2.0-84919930295 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/10041 -
dc.identifier.url http://www.sciencedirect.com/science/article/pii/S0022509614002403 -
dc.identifier.wosid 000350535300001 -
dc.language 영어 -
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD -
dc.title Effect of phase interactions on crystal stress evolution over crystal orientation space under elastoplastic deformation of two-phase polycrystalline solids -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Materials Science, Multidisciplinary; Mechanics; Physics, Condensed Matter -
dc.relation.journalResearchArea Materials Science; Mechanics; Physics -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor Crystal stress -
dc.subject.keywordAuthor Two-phase -
dc.subject.keywordAuthor Polycrystalline solid -
dc.subject.keywordAuthor Phase interaction -
dc.subject.keywordAuthor Single crystal yield surface -
dc.subject.keywordAuthor Finite element analysis -
dc.subject.keywordAuthor Elasticity -
dc.subject.keywordAuthor Plasticity -
dc.subject.keywordPlus SITU NEUTRON-DIFFRACTION -
dc.subject.keywordPlus PLASTIC-DEFORMATION -
dc.subject.keywordPlus SINGLE-CRYSTAL -
dc.subject.keywordPlus DEFORMING POLYCRYSTALS -
dc.subject.keywordPlus STAINLESS-STEEL -
dc.subject.keywordPlus YIELD SURFACE -
dc.subject.keywordPlus COMPOSITES -
dc.subject.keywordPlus STRAIN -
dc.subject.keywordPlus ALLOYS -
dc.subject.keywordPlus DEPENDENCE -

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