Journal
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
Volume 28, Issue 7-8, Pages 715-735Publisher
WILEY
DOI: 10.1002/nag.376
Keywords
high temperature concrete; thermo-mechanical damage; transient thermal creep
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A thermo-mechanical model for concrete under transient high temperatures is presented. Particular emphasis is placed on the transient thermal creep model, which can be seen as an extension of Thelandersson's formulation, and the gradient-enhanced damage model that has been extended here to include temperature dependency. Degradation of the material stiffness due to exposure to elevated temperatures is included via a simple thermal damage model. The model's performance is illustrated on several benchmark problems under both transient and steady state heating conditions. Copyright (C) 2004 John Wiley Sons, Ltd.
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