Explicit finite element modeling of static crack propagation in reinforced concrete

Yu, Rena C.; Ruiz, Gonzalo

doi:10.1007/s10704-006-9002-0

Cited by 33 publications

(21 citation statements)

References 25 publications

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“…1b), cohesive zone models have been applied widely, simulating fracture in concrete (e.g. [9,[28][29][30][31]), adhesively bonded joints [32,33], ceramic-metal composites [34] and elastic-plastic ductile metals [20,35]. The fracture process in quasi-brittle materials other than concrete, such as bone [36] and graphite [37], has also been simulated by cohesive zone models.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional crack observation, quantification and simulation in a quasi-brittle material

et al. 2013

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To investigate the fracture behaviour of polygranular graphite (a quasi-brittle material), crack propagation in a short bar chevron notched specimen was studied by synchrotron X-ray computed tomography combined with digital volume correlation. Displacements were measured within the loaded test specimen, particularly the three-dimensional (3-D) profile of crack opening displacement. Analysis of the 3-D displacement field confirmed the existence of distributed damage in a fracture process zone, which significantly increased the effective crack length. Finite element simulations affirmed that the measured crack opening profiles could be reproduced using a cohesive zone model, but not with a linear elastic analysis. Comparing the simulation to the experimental results, it was deduced that the critical strain energy release rate varied across the crack front, i.e. the fracture toughness is constraint-dependent. This is proposed to be a general characteristic of quasi-brittle materials.

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Section: Introductionmentioning

confidence: 99%

Three-dimensional crack observation, quantification and simulation in a quasi-brittle material

et al. 2013

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“…Examples include buckling involving mode jumping [44] and snap-through [36,37], and crack propagation in concrete [45,46] and masonry [65] structures. For buckling problems involving mode jumping and snap-through, the dynamic effect is present in the deformation process [47,48].…”

Section: Introductionmentioning

confidence: 99%

“…In modeling structures made of brittle materials such as concrete and masonry, unstable structural responses involving ''snap-back'' due to crack propagation and/or strain-softening usually exist and may induce local dynamic processes in the middle of a overall static process under certain conditions [51], making it difficult for common static solution strategies such as the displacement-control Newton-Raphson method to obtain a converged solution [45,46,52]. The arc-length method with its different forms has been repeatedly reported to have difficulties in finding a converged solution although the method was coined for obtaining structural responses associated with either snap-back or snap-through phenomena [53][54][55][56][57][58].…”

Section: Introductionmentioning

confidence: 99%

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Finite element modeling of debonding failures in FRP-strengthened RC beams: A dynamic approach

Chen

Teng

Chen

et al. 2015

Computers & Structures

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a b s t r a c tThis paper is concerned with the finite element simulation of debonding failures in FRP-strengthened concrete beams. A key challenge for such simulations is that common solution techniques such as the Newton-Raphson method and the arc-length method often fail to converge. This paper examines the effectiveness of using a dynamic analysis approach in such FE simulations, in which debonding failure is treated as a dynamic problem and solved using an appropriate time integration method. Numerical results are presented to show that an appropriate dynamic approach effectively overcomes the convergence problem and provides accurate predictions of test results.

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“…An interface model for concrete-steel interface deterioration follows the one developed in Yu and Ruiz (2006). To advance the numerical calculations, we start with the modified dynamic-relaxation (DR) method implemented in Yu and Ruiz (2004) as the static solver.…”

Section: Introductionmentioning

confidence: 99%

Finite-element study of the diagonal-tension failure in reinforced concrete beams

Saucedo

Ruiz

2011

Int J Fract

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In this work, we aim to tackle one of the most devastating failure modes in reinforced concrete (RC) structures: the diagonal-tension failure. In order to study this phenomenon numerically, a model capable of dealing with both static and dynamic crack propagation as well as the natural transition of these two regimes is necessary. We chose a discrete cohesive model for concrete fracture, an interface bond-slip model for the deterioration between concrete and steel rebar, both combined with an insertion algorithm. The static process is solved by a dynamic relaxation (DR) method together with a modified technique to enhance the convergence rate. The same DR method is used to detect a dynamic process and switch to a dynamic calculation. The methodology is applied to model the experimental results of Carmona et al. (Engineering Fracture Mechanics 74:2788-2809, where the recognition of the transition to a dynamic fracture in a presumably static calculation is essential to reproduce the diagonal-tension failure observed.

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Explicit finite element modeling of static crack propagation in reinforced concrete

Cited by 33 publications

References 25 publications

Three-dimensional crack observation, quantification and simulation in a quasi-brittle material

Three-dimensional crack observation, quantification and simulation in a quasi-brittle material

Finite element modeling of debonding failures in FRP-strengthened RC beams: A dynamic approach

Finite-element study of the diagonal-tension failure in reinforced concrete beams

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