GFV solution on UTE mesh for transient modeling of concrete aging effects on thermal plane strains during construction of gravity dam

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Abstract

Considering variation of the material properties during early ages of construction, the strain-stress fields due to cement hydration induced transient temperature field in a section of a concrete dam are computed. The 2D matrix free Galerkin Finite Volume (GFV) method is utilized to solve temperature and plane-strain equations in a sequential manner on an Unstructured Triangular Elements (UTE) meshes. For the computed temperature field at each time step some iterative solutions are performed until the force equilibrium equations are converged. In the developed numerical model, a novel method to impose gradient boundary condition is introduced that is suitable for the GFV solution on UTE meshes. The results of the developed model is verified by comparing the computed results with the experimental measurements of some bench mark test cases, and good agreement is observed. To present the ability of the introduced model to model real problems, modeling time dependent thermal stress profiles during gradual construction of a concrete dam on a natural foundation is performed for both constant and variable mechanical properties conditions. © 2012 Elsevier Inc.

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APA

Sabbagh-Yazdi, S. R., & Amiri-SaadatAbadi, T. (2013). GFV solution on UTE mesh for transient modeling of concrete aging effects on thermal plane strains during construction of gravity dam. Applied Mathematical Modelling, 37(1–2), 82–101. https://doi.org/10.1016/j.apm.2012.01.045

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