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An application of nonsymmetric Lax-Milgram lemma to nonassociated plasticity
Authors:Cen Yan-ming
Institution:Guizhou Institute for Nationalities, Guiyang
Abstract:Based on a general assumption for plastic potential and yield surface, some properties of the nonassociated plasticity are studied, and the existence and uniqueness of the distribution of incremental stress and displacement for work-hardening materials are proved by using nonsymmetric Lax-Milgram lemma, when the work-hardening parameter A>parpartF/partsgrparparpartQ/partsgrparlangpartF/partsgr, partQ/partsgrrang.
Keywords:nonsymmetry  nonassociated plasticity  existence  uniqueness
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