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Rate variational extremum principles for finite elastoplasticity

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Abstract

Dual variational extremum principles for rate problems of classical elastoplasticity at finite deformation are studied in Updated Lagrangian rate forms. It is proved that the convexity of the variational functionals are closely related to a so-called gap function, which plays an important role in nonlinear variational problems.

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Authors and Affiliations

  1. Department of Forecasting and Development Research, Hefei University of Technology, Hefei

    Gao Yang

  2. Department of Mechanical Engineering, Yale University, New Haven, USA

    E. T. Onat

Authors
  1. Gao Yang
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  2. E. T. Onat
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Communicated by Guo Zhong-heng

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Yang, G., Onat, E.T. Rate variational extremum principles for finite elastoplasticity. Appl Math Mech 11, 659–667 (1990). https://doi.org/10.1007/BF02017481

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  • DOI: https://doi.org/10.1007/BF02017481

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