Exploració per tema "Concrete--Fracture"
Ara es mostren els items 1-7 de 7
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A thermodynamically consistent plastic-damage framework for localized failure in quasi-brittle solids: material model and strain localization analysis
(2016-06)
Article
Accés obertAiming for the modeling of localized failure in quasi-brittle solids, this paper addresses a thermodynamically consistent plastic-damage framework and the corresponding strain localization analysis. A unified elastoplastic ... -
An elastic plastic damage formulation for concrete: application to elementary and structural tests
(2006-11)
Article
Accés obertPure elastic damage models or pure elastic plastic constitutive laws are not totally satisfactory to describe the behaviour of concrete. They indeed fail to reproduce the unloading slopes during cyclic loading which define ... -
Análisis mecomecánico de la fisuración del hormigón sometido a la acción de altas temperaturas
(Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialUn modelo meso estructural 2D empleado inicialmente en el análisis mecánico del hormigón bajo altas temperaturas, es extendido en este trabajo a un análisis 3D y a un análisis termo-mecánico acoplado más complejo. El ... -
Benchmarks for the validation of a non local model
(2004-10)
Article
Accés restringit per política de l'editorialThe aim of this contribution is to present a series of organised benchmarks that helps at validating the robustness of the FE implementation of a constitutive relation, its pertinence with respect to experiments, and ... -
Meso-mechanical analysis of the fracture of concrete specimens in mixed mode
(2009)
Text en actes de congrés
Accés restringit per decisió de l'autorThis paper describes recent numerical simulation results of some experiments carried out by Nooru-Mohamed to study mixed mode fracture of concrete. The numerical simulation is based on a meso-mechanical model developed ... -
Numerical modeling of crack propagation using zero-thickness interfaces elements and configurational mechanics
(International Association of Fracture Mechanics for Concrete and Concrete Structures, 2019)
Text en actes de congrés
Accés restringit per política de l'editorialThe prediction of crack trajectories is one of the major challenges of existing numerical methods for the mechanical behavior of concrete and other quasi-brittle materials. For this purpose, this paper describes a methodology ... -
Simulations of fracture in concrete beams under bending using a continuum and discrete approach
(CIMNE, 2015)
Comunicació de congrés
Accés obertThe paper describes two-dimensional meso-scale results of fracture in notched concrete beams under bending. Concrete was modelled as a random heterogeneous 4-phase material composed of aggregate particles, cement matrix, ...