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Implicit Damping Iterative Algorithm to Solve Elastoplastic Static and Dynamic Equations

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  • Huaifa Ma
  • Jikai Zhou
  • Guoping Liang

Abstract

This paper presents an implicit damping iterative algorithm to simultaneously solve equilibrium equations, yield function, and plastic flow equations, without requiring an explicit expression of elastoplastic stiffness matrices and local iteration for “return mapping” stresses to the yield surface. In addition, a damping factor is introduced to improve the stiffness matrix conformation in the nonlinear iterative process. The incremental iterative scheme and whole amount iterative scheme are derived to solve the dynamical and static and dynamical elastoplastic problems. To validate the proposed algorithms, computation procedures are designed and the numerical tests are implemented. The computational results verify the correctness and reliability of the proposed implicit iteration algorithms.

Suggested Citation

  • Huaifa Ma & Jikai Zhou & Guoping Liang, 2014. "Implicit Damping Iterative Algorithm to Solve Elastoplastic Static and Dynamic Equations," Journal of Applied Mathematics, Hindawi, vol. 2014, pages 1-11, August.
    • Handle: RePEc:hin:jnljam:486171
    DOI: 10.1155/2014/486171
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