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文章基本信息

  • 标题:Numerical Simulations of Rate/Time Effects in Concrete
  • 作者:Ricardo H. Lorefice ; Guillermo Etse ; Marcia Rizo Patron
  • 期刊名称:Mecánica Computacional
  • 印刷版ISSN:2591-3522
  • 出版年度:2010
  • 卷号:29
  • 期号:52
  • 页码:5303-5319
  • 语种:English
  • 出版社:CIMEC-INTEC-CONICET-UNL
  • 其他摘要:Structural response of concrete strongly depends on the nature of applied loads. Time varying loads can induce rate/time effects in concrete like increasing strength (rate effect) or basic creep deformation (under sustained loads). In this paper we present a computational approach that numerically simulates concrete mesostructure like a two-phase material. Each material phase is represented by continuum and interface finite elements which allow to track the crack trajectories under different loading scenarios. A specific rate-dependent interface constitutive law is included in the model in order to capture the rate/time effects and their incidence in the global structural response of the specimen.
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