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  • 标题:Integrated Analysis of Time-Dependent Failure Using a Viscoplastic Theory
  • 本地全文:下载
  • 作者:Ricardo H. Lorefice ; Guillermo Etse ; Marcia B. Rizo Patron
  • 期刊名称:Mecánica Computacional
  • 印刷版ISSN:2591-3522
  • 出版年度:2008
  • 卷号:XXVII
  • 期号:13
  • 页码:941-958
  • 出版社:CIMEC-INTEC-CONICET-UNL
  • 摘要:The implications of using a viscoplastic theory to study time-dependent failure in solid materials are analyzed considering the elasto-viscoplastic theory of Perzyna (1963, 1966). The crucial aspect is that a viscoplastic failure surface has an intrinsically dynamic nature, which allows us to take advantage of the postulate of maximum dissipation to use a unique formulation to investigate a wide range of engineering
    problems like dynamic loading, creep or relaxation. Also, the consequences of formulate constitutive models that includes hardening, perfect and softening viscoplasticity are also
    addressed in the framework of a unique and consistent strategy.
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