Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A new 3D damage model for concrete under monotonic, cyclic and dynamic loadings
Among the “theories” applied to model concrete behavior, damage mechanics has proven to be efficient. One of the first models for concrete introduced into such a framework is Mazars’ damage model. A new formulation of this model, called the “μ model” and based on a coupling of elasticity and damage within an isotropic formulation, is proposed herein for the purpose of 3D cyclic and dynamic loadings. Unilateral behavior (i.e., crack opening and closure) is introduced by use of two internal variables. A threshold surface is then associated with each of these variables. The shape of such surfaces has been chosen to model as accurately as possible concrete behavior under various loadings, i.e., tension, compression, shear, biaxial and triaxial, in the aim of simulating a large number of loading types (monotonic, cyclic, seismic, blast, impact, etc.). Applications of this model are presented on plain or reinforced concrete elements subjected to a range of loadings (e.g., multiaxial, cyclic, dynamic). A comparison with experimental results serves to demonstrate the effectiveness of these various selected options.
A new 3D damage model for concrete under monotonic, cyclic and dynamic loadings
Among the “theories” applied to model concrete behavior, damage mechanics has proven to be efficient. One of the first models for concrete introduced into such a framework is Mazars’ damage model. A new formulation of this model, called the “μ model” and based on a coupling of elasticity and damage within an isotropic formulation, is proposed herein for the purpose of 3D cyclic and dynamic loadings. Unilateral behavior (i.e., crack opening and closure) is introduced by use of two internal variables. A threshold surface is then associated with each of these variables. The shape of such surfaces has been chosen to model as accurately as possible concrete behavior under various loadings, i.e., tension, compression, shear, biaxial and triaxial, in the aim of simulating a large number of loading types (monotonic, cyclic, seismic, blast, impact, etc.). Applications of this model are presented on plain or reinforced concrete elements subjected to a range of loadings (e.g., multiaxial, cyclic, dynamic). A comparison with experimental results serves to demonstrate the effectiveness of these various selected options.
A new 3D damage model for concrete under monotonic, cyclic and dynamic loadings
Mazars, Jacky (Autor:in) / Hamon, François / Grange, Stéphane
2015
Aufsatz (Zeitschrift)
Englisch
Operating Procedures, Materials Treatment , Theoretical and Applied Mechanics , Unilateral behavior , Damage models , Finite element calculations , Severe loadings , Structural Mechanics , Civil Engineering , Materials Science, general , Engineering , Cyclic loading , Building Materials , Concrete , Thermodynamics of irreversible processes
A new 3D damage model for concrete under monotonic, cyclic and dynamic loadings
| British Library Online Contents | 2015
A new 3D damage model for concrete under monotonic, cyclic and dynamic loadings
| Online Contents | 2014
A new 3D damage model for concrete under monotonic, cyclic and dynamic loadings
| Online Contents | 2014
A new 3D damage model for concrete under monotonic, cyclic and dynamic loadings
| Springer Verlag | 2014