Rate Dependent Damage Model for Concrete in Dynamics

Dubé, Jean‐François; Pijaudier‐Cabot, Gilles; Borderie, Christian La

doi:10.1061/(asce)0733-9399(1996)122:10(939)

Cited by 118 publications

(83 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The growth of D c and D t is defined by the following equations which are similar to the equations used by Dube et al [11]:…”

Section: Damage Modelmentioning

confidence: 99%

“…• Microcracking is captured with a rate dependent damage model [11], which uses two damage variables in order to provide a realistic response of the material in uniaxial compression while preserving a good description of tension, which is a characteristic of damage models. Rate effects are necessary in order to represent dynamic experiments (mostly dynamic tensile tests).…”

Section: Constitutive Equationsmentioning

confidence: 99%

“…2b) and cannot contribute to an increase of apparent strength. The response of the material in tension can be captured with a rate dependent damage model [11,24] or a rate dependent smeared crack model [26].…”

Section: Constitutive Equationsmentioning

confidence: 99%

See 2 more Smart Citations

Coupled damage and plasticity modelling in transient dynamic analysis of concrete

Gatuingt¹,

Pijaudier‐Cabot²

2001

Num Anal Meth Geomechanics

Self Cite

View full text Add to dashboard Cite

In a concrete structure subjected to an explosion, for example a concrete slab, the material is subjected to various states of stress which lead to as many mode of rupture. Close to the explosive, a state of strong hydrostatic compression is observed. This state of stress produces an irreversible compaction of the material. Away from the zone of explosion, confinement decreases and the material undergoes compression with a state of stress, which is slightly triaxial. Finally, the compression wave can be reflected on a free surface and becomes a tensile wave, which by interaction with the compression wave, produces scabbing. We present in this paper a model aimed at describing these three failure modes. It is based on visco-plasticity and rate dependent damage in which a homogenisation method is used in order to include the variation of the material porosity due to compaction. The model predictions are compared with several experiments performed on the same concrete. Computations of split Hopkinson tests on confined concrete, a tensile test with scabbing, and an explosion on a concrete slab are presented.

show abstract

“…The growth of D c and D t is defined by the following equations which are similar to the equations used by Dube et al [11]:…”

Section: Damage Modelmentioning

confidence: 99%

Section: Constitutive Equationsmentioning

confidence: 99%

See 1 more Smart Citation

Coupled damage and plasticity modelling in transient dynamic analysis of concrete

Gatuingt¹,

Pijaudier‐Cabot²

2001

Num Anal Meth Geomechanics

Self Cite

View full text Add to dashboard Cite

show abstract

“…First, a viscous-damage formulation, similar to a Perzyna-type of viscoplasticity, was used to describe the rate of damage (see for example [29][30][31]). Plotzitza et al [25] proposed a formulation where the evolution of damage depends to some extent on the immediately preceding strain history.…”

Section: Rate-dependent Damage Modelmentioning

confidence: 99%

Simulation of dynamic behavior of quasi-brittle materials with new rate dependent damage model

Pereira

Weerheijm²,

Sluijs³

2016

Proceedings of the 9th International Conference on Fracture Mechanics of Concrete and Concrete Structures

View full text Add to dashboard Cite

Abstract. In concrete often complex fracture and fragmentation patterns develop when subjected to high straining loads. The proper simulation of the dynamic cracking process in concrete is crucial for good predictions of the residual bearing capacity of structures in the risk of being exposed to extraordinary events like explosions, high velocity impacts or earthquakes.As it is well known, concrete is a highly rate dependent material. Experimental and numerical studies indicate that the evolution of damage is governed by complex phenomena taking place simultaneously at different material scales, i.e. micro, meso and macro-scales. Therefore, the constitutive law, and its rate dependency, must be adjusted to the level of representation. For a proper phenomenological (macroscopic) representation of the reality, the constitutive law has to explicitly describe all phenomena taking place at the lower material scales. Macro-scale inertia effects are implicitly simulated by the equation of motion.In the current paper, dynamic crack propagation and branching is studied with a new rate-dependent stress-based nonlocal damage model. The definition of rate in the constitutive law is changed to account for the inherent meso-scale structural inertia effects. This is accomplished by a new concept of effective rate which governs the dynamic delayed response of the material to variations of the deformation (strain) rate, usually described as micro-inertia effects. The proposed model realistically simulates dynamic crack propagation and crack branching phenomena in concrete.

show abstract

“…The corresponding constitutive models, even with induced anisotropy, are now most often implemented with localization limiters, i.e. either in a nonlocal form [1,2] or as visco-damage models [3,4,5] or both [6,7]. This allows to gain some numerical robustness as mesh independency of the converged finite element solution.…”

Section: Introductionmentioning

confidence: 99%

Intrinsic dissipation of a modular anisotropic damage model: Application to concrete under impact

Chambart

Desmorat

Gatuingt

2014

Engineering Fracture Mechanics

View full text Add to dashboard Cite

Based on the mathematical proof of the positivity of the dissipation due to anisotropic damage, different numerical scheme to compute such a dissipation in concrete structures are proposed. The positivity of intrinsic dissipation for the considered modular anisotropic damage model is first checked in the case of Willam non-proportional loading test, then checked for different impact tests on concrete structures. Both the consequences of the modeling of the strain rate effect in tension (from visco-damage) and of the damage deactivation (micro-cracks closure) for alternated loadings are studied.

show abstract

Rate Dependent Damage Model for Concrete in Dynamics

Cited by 118 publications

References 10 publications

Coupled damage and plasticity modelling in transient dynamic analysis of concrete

Coupled damage and plasticity modelling in transient dynamic analysis of concrete

Simulation of dynamic behavior of quasi-brittle materials with new rate dependent damage model

Intrinsic dissipation of a modular anisotropic damage model: Application to concrete under impact

Contact Info

Product

Resources

About