Numerical simulation of serviceability, damage evolution and failure of reinforced concrete shells

Noh, Sam-Young; Krätzig, Wilfried B.; Meskouris, Konstantin

doi:10.1016/s0045-7949(02)00421-2

Cited by 38 publications

(19 citation statements)

References 10 publications

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“…The systematic investigation of the validity of the constitutive laws for the tension stiffening effect has shown the applicability of the modeling concept for the analysis of the reinforced concrete surface structures. An application example of a large scale hyperbolic shell may be, at this point, referred to Noh et al (2003). The analyses carried out confirm the capacity of the reinforced concrete model developed in this study.…”

Section: Resultssupporting

confidence: 70%

“…In the biaxial cracking state, the second crack is allowed to open perpendicular to the first one. In principle, there remains no stiffness orthogonal to a crack direction, but each crack will keep one-fourth of its tangential stiffness as the shear stiffness (shear retention), which depends upon the current biaxial stress state (Noh et al 2003). If a second crack develops, all stiffness will vanish.…”

Section: Additionsmentioning

confidence: 99%

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Tension Stiffening Model for Numerical Analysis of RC Structures by Using Bond-Slip Relationship

Noh

2009

ACT

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In this paper, a tension stiffening model based on the bond-slip relationship is introduced and adopted in a finite multilayered shell element formulation for surface structure analysis. The tension stiffening effect evaluated at the meso-level is taken into account in the constitutive law of reinforcement at the macro level by defining a crack element at the Gauss point. The crack element is iteratively analyzed by means of a step-by-step integration, which allows application of any complicated bond laws. To define the crack element, a crack spacing model considers the crack formation grade. As a relevant factor in this tension stiffening concept, the reinforcement cracking stress may be evaluated by taking the fractile value of the concrete tensile strength. Through several simulations, the validity of the concept is systematically investigated under monotonic and cyclic loading. The analysis under cyclic loading shows the effect of the re-contact of the crack flanks. The numerical examples demonstrate the applicability of the applied reinforced concrete model with a tension stiffening effect.

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Section: Resultssupporting

confidence: 70%

Section: Additionsmentioning

confidence: 99%

Tension Stiffening Model for Numerical Analysis of RC Structures by Using Bond-Slip Relationship

Noh

2009

ACT

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“…They also proposed an empirically based analytical expression for the set of common points, resulting in a curve with the same shape of the failure envelope. This idea has been employed several times after that for studying cyclic actions [14,15] and provides the stress and strain state every cycle.…”

Section: Former Researchmentioning

confidence: 99%

Effect of fatigue degradation of the compression zone of concrete in reinforced concrete sections

Zanuy

Fuente

Albajar

2007

Engineering Structures

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“…From the literature (Noh et al, 2003), a hyperbolic softening path as shown in Figure 1 is adopted to represent the behavior of concrete in tension after crack initiation. The stress in concrete after cracking is expressed as…”

Section: Damage Criterionmentioning

confidence: 99%

Nonlinear Analysis of RC Structures Using Isotropic Damage Model

Gopinath

Rajasankar

Iyer

2011

International Journal of Damage Mechanics

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This article proposes a simple isotropic damage model within damage mechanics framework to represent the behavior of concrete in tension. Macroscopic evolution of tensile crack is considered as damage and is mathematically defined using an exponential function of tensile strain. A damage evolution law is formulated by applying strain equivalence principle to hyperbolic tension-softening curve. Value of damage variable is assumed theoretically to vary between '0' and '1' to denote uncracked and ruptured states, respectively. A smeared rotating crack model is coupled with damage formulation to simulate crack propagation effects in nonlinear finite element analysis of reinforced concrete (RC) structures. Many deficiencies of smeared crack model such as stress locking, mesh-induced directional bias, and instability in response computation for near-ultimate load are overcome using the coupled model. To verify the proposed model, nonlinear static response behavior of a RC beam is computed and compared with experimental and analytical results reported in literature. Effectiveness and applicability of the model to analyze practical structures are proved by analyzing a RC chimney. Nonlinear response of RC chimney is reviewed at global level while damage states of finite elements are studied at local level.

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Numerical simulation of serviceability, damage evolution and failure of reinforced concrete shells

Cited by 38 publications

References 10 publications

Tension Stiffening Model for Numerical Analysis of RC Structures by Using Bond-Slip Relationship

Tension Stiffening Model for Numerical Analysis of RC Structures by Using Bond-Slip Relationship

Effect of fatigue degradation of the compression zone of concrete in reinforced concrete sections

Nonlinear Analysis of RC Structures Using Isotropic Damage Model

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