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Título:
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3D-mesomechanical analysis of external sulfate attack in concrete
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Autor/a:
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Pérez Carreras, Adrià; Riera Bayo, Celia; López Garello, Carlos María; Carol, Ignacio
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Otros autores:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. MECMAT - Mecànica de Materials |
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Abstract:
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The present study focuses on degradation of concrete by external sulfate attack. The numerical model developed by the MECMAT/UPC group, incorporates coupled C-M analysis using a meso-mechanical approach with discrete cracking, using the MEF and zero thickness interface elements with a constitutive law based on nonlinear fracture mechanics concepts. Examples of application are run on 2D and 3D samples, with geometries and FE meshes generated with a code developed also in-house. The numerical analysis is carried out using two independent codes and a “staggered” procedure. The first code performs the mechanical analysis and the second the diffusive/reaction chemical problem. 2D uncoupled and coupled analysis are presented and discussed. Preliminary coupled 3D results are also presented and compared with equivalent 2D results, and the differences are detected and analyzed. |
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Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
-Concrete--Deterioration
-External sulfate attack
-Concrete degradation
-Finite element method
-Interface element
-Meso-mechanical analysis.
-Formigó -- Deterioració |
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Derechos:
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Tipo de documento:
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Artículo - Versión publicada
Objeto de conferencia |
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