Abstract
A parametric variational principle, the parametric minimum potential energy principle (abbreviated to PMPEP), is presented for the elastoplastic problems. The principle proposed is free from the restraint of Drucker's postulate and consequently suitable for solving the nonassociated plastic flow problems in rock, soil, concrete and other geomaterials.
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References
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Wanxie, Z., Roulei, Z. The parametric variational principle for elastoplasticity. Acta Mech Sinica 4, 134–137 (1988). https://doi.org/10.1007/BF02487714
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DOI: https://doi.org/10.1007/BF02487714