A simplified isotropic damage model for concrete under bi-axial stress states

Tao, Xiaoya; Phillips, D. V.

doi:10.1016/j.cemconcomp.2004.09.017

Cited by 61 publications

(41 citation statements)

References 19 publications

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“…The formation of micro-cracks and the sliding between granular particles generate a highly nonlinear response (Oller, 1988a). This phenomenon is characterized by the influence of the cohesion and friction in the strength of the material, the softening exhibited in the stress-deformation curve, the volumetric expansion (Tao and Phillips, 2005) and, as an obvious consequence, a reduction in the elastic modulus of the material.…”

Section: Isotropic Damage Constitutive Modelmentioning

confidence: 99%

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Isotropic damage model and serial/parallel mix theory applied to nonlinear analysis of ferrocement thin walls. Experimental and numerical analysis

Paredes¹,

Bedoya-Ruíz²,

Gómez³

2016

ing.inv.

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<p>Ferrocement thin walls are the structural elements that comprise the earthquake resistant system of dwellings built with this material. This article presents the results drawn from an experimental campaign carried out over full-scale precast ferrocement thin walls that were assessed under lateral static loading conditions. The tests allowed the identification of structural parameters and the evaluation of the performance of the walls under static loading conditions. Additionally, an isotropic damage model for modelling the mortar was applied, as well as the classic elasto-plastic theory for modelling the meshes and reinforcing bars. The ferrocement is considered as a composite material, thus the serial/parallel mix theory is used for modelling its mechanical behavior. In this work a methodology for the numerical analysis that allows modeling the nonlinear behavior exhibited by ferrocement walls under static loading conditions, as well as their potential use in earthquake resistant design, is proposed.</p>

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Section: Isotropic Damage Constitutive Modelmentioning

confidence: 99%

“…Some of those models are based on CDM theory and classic plasticity postulates, e.g. Oller (1988b), Mazars et al (1989), Lubliner et al (1989), Jason et al (2006), Tao et al (2005), among others.…”

Section: Isotropic Damage Constitutive Modelmentioning

confidence: 99%

Isotropic damage model and serial/parallel mix theory applied to nonlinear analysis of ferrocement thin walls. Experimental and numerical analysis

Paredes¹,

Bedoya-Ruíz²,

Gómez³

2016

ing.inv.

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“…These phenomena can be characterized by the cohesion and the inner friction angle, the softening stress strain curve and the volumetric dilatation (Tao and Phillips 2005). They cause the decrease of the material's elastic modulus and strength.…”

Section: Introductionmentioning

confidence: 99%

“…In the early eighties CDM was used for the numerical modeling of concrete. Some of these models were based on CDM and the classical plasticity theory (Jason et al 2006;Lubliner et al 1989;Mazars and Pijaudier-Cabot 1989;Oller 1988;Tao and Phillips 2005) among others. The continuum damage constitutive models are defined by using an inner damage variable that represents the deterioration of the strength and the elasticity modulus.…”

Section: Introductionmentioning

confidence: 99%

New Tension-Compression Damage Model for Complex Analysis of Concrete Structures

2016

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A new damage model, based on continuum damage mechanics and simulating the opening, closing and reopening of cracks in concrete using only one surface of discontinuity, is proposed in this article. The model complies with the thermodynamics principles of non-reversible, isothermal and adiabatic processes. INTRODUCTIONMicro-cracking and sliding between granular particles cause the highly non-linear behavior of concrete (Oller 1988), and it is difficult to represent this behavior through constitutive models. These phenomena can be characterized by the cohesion and the inner friction angle, the softening stress strain curve and the volumetric dilatation (Tao and Phillips 2005). They cause the decrease of the material's elastic modulus and strength. If the material is exposed to alternating tensilecompressive stress states, the opening, closing and reopening of cracks can occur. These phenomena must be adequately represented by constitutive models ensuring continuity of the response to complex loads. Traditionally, constitutive models for concrete use the fracture mechanics theory (CFM) and the continuum damage mechanics theory (CDM). Classical fracture mechanics gives a basis for simulating the opening and closing of cracks. Hillerborg et al. (1976) describe the mechanical behavior of concrete by developing a non-linear fracture model and using the finite element

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“…These models, however, contain many parameters (Kratzig and Polling, 2004;Tao and Phillips, 2005;Ding and Yu, 2007), and the expressions of these damage models are complex (Peng et al, 2004). This paper proposes a new elasto-plasticity damage constitutive model for concrete in order to reduce the limitation and lacuna of the traditional damage constitutive models for concrete.…”

Section: Introductionmentioning

confidence: 99%

Coupled elasto-plasticity damage constitutive models for concrete

Chen

et al. 2013

J. Zhejiang Univ. Sci. A

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Abstract:The paper is to design and construct a coupled elasto-plasticity damage constitutive model for concrete. Based on the energy dissipation principle, the Hsieh-Ting-Chen four-parameter yield function is used. The model can reflect different strength characteristics of concrete in tension and compression, and reduce the limitation and lacuna of the traditional damage constitutive models for concrete. Furthermore, numerical test for concrete stress-strain relation under uniaxial tension and compression is given. Moreover, the damage process of concrete gravity dam is calculated and analyzed in seismic load. Compared with other damage constitutive models, the proposed model contains only one unknown parameter and the other parameters can be found in the Hsieh-Ting-Chen four-parameter yield function. The same damage evolution law, which is used for tension and compression, is good for determining stress-strain constitutive and damage characteristics in complex stress state. This coupled damage constitutive models can be applied in analyzing damage of concrete gravity dam and arch dam.

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A simplified isotropic damage model for concrete under bi-axial stress states

Cited by 61 publications

References 19 publications

Isotropic damage model and serial/parallel mix theory applied to nonlinear analysis of ferrocement thin walls. Experimental and numerical analysis

Isotropic damage model and serial/parallel mix theory applied to nonlinear analysis of ferrocement thin walls. Experimental and numerical analysis

New Tension-Compression Damage Model for Complex Analysis of Concrete Structures

Coupled elasto-plasticity damage constitutive models for concrete

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