Three dimensional combined fracture–plastic material model for concrete

Červenka, J; Papanikolaou, Vassilis K.

doi:10.1016/j.ijplas.2008.01.004

Cited by 322 publications

(185 citation statements)

References 33 publications

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“…The smeared crack analyses performed in this investigation were made with the program ATENA [7] using the combined fractureplastic model for concrete of Červenka & Pappanikolaou [6].…”

Section: Numerical Modelmentioning

confidence: 99%

Prediction of Shear Failure of Large Beams Based on Fracture Mechanics

Červenka¹,

Červenka²,

Pukl³

et al. 2016

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

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A large beam tested at Toronto University for a prediction contest was simulated by the authors using a nonlinear finite element code. Their entry was chosen as the overall winner of the prediction contest and was a motivation for this case study. The crack propagation was modeled by a smeared crack approach and a fracture mechanics-based cohesive crack model. The paper discusses the model sensitivity to mesh sizes and fracture parameters. A parameter study was performed to examine the model uncertainty of numerical simulation. A probabilistic model of concrete non-homogeneity was used to reflect a more realistic strain localization in the smeared crack model.

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“…The smeared crack analyses performed in this investigation were made with the program ATENA [7] using the combined fractureplastic model for concrete of Červenka & Pappanikolaou [6].…”

Section: Numerical Modelmentioning

confidence: 99%

Prediction of Shear Failure of Large Beams Based on Fracture Mechanics

Červenka¹,

Červenka²,

Pukl³

et al. 2016

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

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show abstract

“…For this reason, nominal properties were assumed for concrete and steel when predicting the performance of the test unit. The concrete of walls and slabs was modelled with shells to which the inelastic constitutive concrete material law SBETA was assigned (Cervenka and Papanikolaou 2008). The pre-stressed concrete foundation was modelled with very stiff elastic-shell elements.…”

Section: Finite Element Model Of Test Unitmentioning

confidence: 99%

Dynamic testing of a four-storey building with reinforced concrete and unreinforced masonry walls: prediction, test results and data set

Beyer

Tondelli

Petry

et al. 2015

Bull Earthquake Eng

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This paper presents the results of a series of shake-table tests on a half-scale, four-storey building with reinforced concrete and unreinforced masonry walls. Due to the lack of reference tests, the seismic behaviour of such mixed structures is poorly understood. The test unit was subjected to several runs of increasing intensity yielding performance states between minor damage and near collapse. Before the test, the expected peak table accelerations leading to different limit states were estimated using the capacity spectrum method, and the predicted values corresponded rather well to actual sustained accelerations. Next to these analyses, the paper describes the test unit, instrumentation and input motion, and comments on the response of the mixed structure in terms of damage evolution and global response quantities, such as force-displacement response and drift and acceleration profiles. The raw and post-processed data sets are made publically available, and all relevant information with regard to data organisation and post-processing procedure is described in an appendix to this paper. The test serves therefore as a benchmark for the validation of numerical models of such mixed structures. The project aims at providing a foundation for the development of seismic design and assessment methods of mixed structures, which are currently not covered by structural codes, including Eurocode 8.

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“…However, it never reached such a high value, not even in the ULS (ultimate limit state). The concrete was modeled as a 3D (three dimensional) brick element with a material model that consists of a combined fracture-plastic failure surface [11]. Tension is handled herein by a fracture model, based on the classical orthotropic smeared crack formulation and the crack band approach.…”

Section: Materials Modelmentioning

confidence: 99%

Comparison and Finite Element Analysis of Steel or Synthetic Fiber Reinforced Precast, Prestressed Beams

Kovàcs¹,

Juhász²,

Madaras³

2015

JCEA

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Usage of fiber reinforced concrete to replace shear reinforcement has become more common in the precast industry in recent years. In some cases, the use of steel fibers could be problematic because of corrosion, hence, synthetic material could be a suitable alternative material solution. Thus, it would appear logical to undertake a comparison of these fibers' load bearing capacity to determine suitability in each case. In this paper, the bending and the shear tests of four large-scale and prestressed beams made of steel or synthetic fiber reinforced concrete without stirrups are presented. The post-cracking residual tensile strength diagram of the fibers, according to RILEM (International Union of Laboratories and Experts in Construction Materials, Systems and Structures) TC162, is given and the experimental behavior of the fiber solutions is compared. The modified fracture energy method is used to define an advanced material model for the fiber reinforced concrete in the finite element analysis. The numerical calculations and the test results are compared in terms of crack propagation and the loading-deflection process. As a consequence, both steel and synthetic fibers seem to be good alternatives to replace the stirrups. However, the behavior of each fiber is not the same. The numerical calculation provided a good approximation for the real scale tests.

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Three dimensional combined fracture–plastic material model for concrete

Cited by 322 publications

References 33 publications

Prediction of Shear Failure of Large Beams Based on Fracture Mechanics

Prediction of Shear Failure of Large Beams Based on Fracture Mechanics

Dynamic testing of a four-storey building with reinforced concrete and unreinforced masonry walls: prediction, test results and data set

Comparison and Finite Element Analysis of Steel or Synthetic Fiber Reinforced Precast, Prestressed Beams

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