Stress-Strain Relationship for Reinforced Concrete in Tension

Carreira, Domingo J.; Han, Chenghua

doi:10.14359/1756

Cited by 31 publications

(21 citation statements)

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“…Besides the traditional approximations, concrete stress-strain laws for tension and compression loadings are highlighted. Some of them were proposed by Carreira and Chu [23,24] (Equation 19), Boone et al [25], and Bone and Ingraffea [26] (Equation 20).…”

Section: Stress-strain Laws For Cyclic Loadingmentioning

confidence: 99%

“…Figure 8 illustrates the geometry configuration, the boundary conditions, the mesh, and the controlled degree of freedom. The material law by Boone et al [25] and Boone and Ingraffea [26], and the Carreira and Chu [23], [24] were adopted to tension and compression, respectively. Besides the experimental parameters [42], other material properties were considered: Poisson ratio of 0.18 [43]; compressive strength of 40.4 MPa estimate from the relation [44], indicated in Equation 31.…”

Section: Direct Tensionmentioning

confidence: 99%

“…An extra simulation was performed for the nonlinear formulation considering the origin as the focus to both directions. Parametrization of the law by Popovic-Saez was done to fit Carreira and Chu [23], [24] monotonic curve, providing β ref = 1.8 and k ref = 0.85. Table 1 resumes the material parameters.…”

Section: Direct Tensionmentioning

confidence: 99%

“…The concrete compressive strength, otherwise, was defined as the focal point for the tension direction. The parameters of the law proposed by Popovics-Saenz's were established to fit Carreira and Chu [23], [24] monotonic curve. The secant moduli maximum degradation was 90%.…”

Section: Direct Compressionmentioning

confidence: 99%

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Nonlinear analysis method of concrete structures under cyclic loading based on the generalized secant modulus

Pereira

Penna

2022

Rev. IBRACON Estrut. Mater.

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A smeared crack model to represent cyclic concrete behavior is presented in this work. The model is based on analytical and experimental studies from the literature and proposes a numerical approach using a new concept, the generalized secant modulus. The monotonic formulation is described, followed by the changes to include the cyclic response, and the stress-strain laws to reproduce the hysteresis. Simulations adopting the proposed model were compared with experimental tests of cyclic tension and compression available in the literature, resulting in consistent load cycles. Three-point bending was simulated to display the structural response under non-elementary load. Finally, a reinforced concrete beam was studied to evaluate the model performance under usual loadings. The results show the model capacity to reproduce cyclic analyses and its potential to be extended to general loadings.

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Section: Stress-strain Laws For Cyclic Loadingmentioning

confidence: 99%

Section: Direct Tensionmentioning

confidence: 99%

Section: Direct Tensionmentioning

confidence: 99%

Section: Direct Compressionmentioning

confidence: 99%

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Nonlinear analysis method of concrete structures under cyclic loading based on the generalized secant modulus

Pereira

Penna

2022

Rev. IBRACON Estrut. Mater.

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“…In such cases the investigator is looking for the maximum time that represents the moment the material ruptures, fails or cracks (cf. Carreira and Chu, 1985;1986;Courtney, 2005).…”

Section: Class Of Distributionsmentioning

confidence: 99%

Estimation and Reliability for a Special Type of Semi-Markov Process

Barbu¹,

Karagrigoriou²,

Makrides³

2019

Journal of Mathematics and Statistics

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This work deals with multi-state systems modelled by means of semi-Markov processes. The sojourn times are seen to be independent not identically distributed random variables and assumed to belong to one of two different general classes of distributions so that the first class is closed under maxima and the second one is closed under minima. We obtain maximum likelihood estimators of the parameters of interest under several estimation schemes and investigate their asymptotic properties. Plug-in type estimators are furnished for various quantities related to the system under study.

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Dynamic Analysis of Twin Tunnel Subjected to Internal Blast Loading

Tiwari

Chakraborty

Matsagar

2014

Advances in Structural Engineering

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The present study deals with three dimensional nonlinear finite element analyses of underground twin tunnels in soil with reinforced concrete (RC) lining subjected to internal blast loading for blast occurring in one tunnel. The blast load has been simulated using coupled Eulerian-Lagrangian (CEL) analysis tool available in finite element software Abaqus/Explicit. Soil mass and RC lining have been modeled using three dimensional eight node reduced integration Lagrangian elements (C3D8R). Beam elements (B31) have been used to model reinforcement of RC lining. A 50 kg TNT charge weight has been used in the analysis. Eight node reduced integration Eulerian elements (EC3D8R) have been used to model the TNT explosive and the surrounding air. Drucker-Prager plasticity model available in Abaqus has been used to simulate strain rate dependent behavior of soil mass. For simulating strain rate dependent behavior of concrete and steel, concrete damaged plasticity and Johnson-Cook plasticity models, available in Abaqus, have been used, respectively. The explosive (TNT) has been modeled using JWL equation-ofstate. Investigations have been performed for studying the deformation of RC lining and surrounding soil mass. Pressure in the RC lining and surrounding soil mass, caused by explosive induced shock wave have also been studied for both tunnels. It is observed that deformation in tunnel away from blast decreases with increasing soil cover in between two tunnels.

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Stress-Strain Relationship for Reinforced Concrete in Tension

Cited by 31 publications

References 0 publications

Nonlinear analysis method of concrete structures under cyclic loading based on the generalized secant modulus

Nonlinear analysis method of concrete structures under cyclic loading based on the generalized secant modulus

Estimation and Reliability for a Special Type of Semi-Markov Process

Dynamic Analysis of Twin Tunnel Subjected to Internal Blast Loading

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