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FINITE ELEMENT ANALYSIS FOR GRADIENT PLASTICITY AND MODELLING OF STRAIN LOCALIZATION[J]. Chinese Journal of Theoretical and Applied Mechanics, 1996, 28(5): 575-584. DOI: 10.6052/0459-1879-1996-5-1995-371
Citation: FINITE ELEMENT ANALYSIS FOR GRADIENT PLASTICITY AND MODELLING OF STRAIN LOCALIZATION[J]. Chinese Journal of Theoretical and Applied Mechanics, 1996, 28(5): 575-584. DOI: 10.6052/0459-1879-1996-5-1995-371
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FINITE ELEMENT ANALYSIS FOR GRADIENT PLASTICITY AND MODELLING OF STRAIN LOCALIZATION

  • 大连理工大学工业装备结构分析国家重点实验室,116024

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  • A finite element method for gradient plastic continuum is presented The Laplacian of the internal state variable is determined on the basis of a least square polynomial approximation of the internal state variable around each integration point A mixed strain element with one point guadrature and hourglass control derived from the Hu-Washizu principle and the average von Mises yield criterion are particularly considered The consistent element stiffness matrix and consistent algorithm for the integratio...
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