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3D-mesomechanical analysis of cracking and spalling of concrete subject to high temperatures

Autor
Perez, A.; Rodriguez, M.; Lopez, C.; Carol, I.
Tipus d'activitat
Presentació treball a congrés
Nom de l'edició
12th International Conference on Computational Plasticity: fundamentals and applications
Any de l'edició
2013
Data de presentació
2013-09
Llibre d'actes
Computational Plasticity XII: fundamentals and applications: XII International Conference on Computational Plasticity: Barcelona, Spain: september 3-5, 2013: proceedings
Pàgina inicial
1015
Pàgina final
1025
Projecte finançador
MECANICA DE LOS PROCESOS EXPANSIVOS DE CEMENTOS Y HORMIGONES A ESCALA MICROMETRICA Y APLICACIONES
URL
http://congress.cimne.com/complas2013/proceedings/full/p722.pdf Obrir en finestra nova
Resum
In this paper, an existing meso-structural model for concrete which had been applied to the study of the mechanical effects of high temperatures in 2D, is extended to 3D, and to more complex coupled thermo-mechanical analysis. The material is idealized as a two-phase compositein which all mesh lines (or surfaces in 3D) are potential cracks equipped with fracture-based zero-thickness interface elements. Different thermal expansion laws are assumed for matrix and particles, whereby the deformation...
Paraules clau
2D and 3D thermo-meso-mechanical analysis, Finite element method, High temperature effect in concrete, Interface element
Grup de recerca
MECMAT - Mecànica de Materials

Participants