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THE VARIATIONAL PRINCIPLE FOR ELASTIC CREEP-DAMAGE PROBLEM[J]. Chinese Journal of Theoretical and Applied Mechanics, 1992, 24(5): 629-634. DOI: 10.6052/0459-1879-1992-5-1995-784
Citation: THE VARIATIONAL PRINCIPLE FOR ELASTIC CREEP-DAMAGE PROBLEM[J]. Chinese Journal of Theoretical and Applied Mechanics, 1992, 24(5): 629-634. DOI: 10.6052/0459-1879-1992-5-1995-784

THE VARIATIONAL PRINCIPLE FOR ELASTIC CREEP-DAMAGE PROBLEM

  • The parametric vanational principle (PVP) is powerful to solve the nonlinear unspecified boundary problems in continuum mechanics. By the PVP, this paper studies the elastic-creep-damage problem. The proposed principle, a development of optimum control theory, is to minimize a constructed potential energy functional under the constrained conditions which are converted from the creep-damage equations. The mathematical proof of principle is given. Also, the paper quotes the results of creep experiments of 2.2...
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