Home / Advanced Search

  • Title/Keywords

  • Author/Affliations

  • Journal

  • Article Type

  • Start Year

  • End Year

Update SearchingClear
  • Articles
  • Online
Search Results (2)
  • Open Access

    ARTICLE

    A Pseudo Flow Theory of Plasticity Based Constitutive Equation for Inverse Analysis Method and its Industry Verification in Sheet Metal Stamping

    B.T. Tang1,2, X.Y. Lu1, H. Xie2

    CMES-Computer Modeling in Engineering & Sciences, Vol.73, No.2, pp. 171-182, 2011, DOI:10.3970/cmes.2011.073.171

    Abstract The Traditional Inverse Analysis Method (TIAM) of sheet metal stamping has the shortcoming of neglecting the effects of deformation history on stress prediction. An Updated Inverse Analysis Method (UIAM) is proposed based on the final workpiece in Euler coordinate system. The UIAM uses the constitutive equation based on pseudo flow theory of plasticity to consider the loading history. In order to avoid numerous iterations to ensure the numerical stability in Newton-Raphson scheme to obtain plastic multiplier ∆λ, the equation in unknown stress vectors is transformed into a scalar equation using the notion of the equivalent More >

  • Open Access

    ABSTRACT

    Analysis of micro/mesoscale sheet stamping processes based on crystalline plasticity model

    K.C. Liao1, C.L. Chen1

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.14, No.4, pp. 103-112, 2010, DOI:10.3970/icces.2010.014.103

    Abstract A Taylor-type crystalline plasticity model, implemented into the commercial finite element analysis software, is coded as a subroutine to investigate the behavior of a stainless steel sheet with a body centered cubic (BCC) structure in the current study. Thickness variations of the sheet are examined under the micro-groove formation procedures. Effects of the spatial distribution of crystallographic orientations on the thickness distribution over the sheet are also demonstrated. Numerical results, based on the sheet with textured orientations, are in good agreement with the associated experimental measurements reported in the literature. More >

Displaying 1-10 on page 1 of 2. Per Page