Numerical Modeling Of Diagonal Cracks In Concrete Beams

Słowik, Marta; Smarzewski, Piotr

doi:10.2478/ace-2014-0021

Cited by 10 publications

(11 citation statements)

References 12 publications

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“…For this reason, the higher compressive strains ε 0 = 0.006 at f c and ε u = 0.012 at 0.8f c are adopted in the HPC model. This compressive stress-strain relation was applied to help obtain convergence of the nonlinear solution [50][51][52]. In the stages of concrete cracking or crushing, the stiffness matrix is adapted to the failure mode.…”

Section: Materials Propertiesmentioning

confidence: 99%

Processes of Cracking and Crushing in Hybrid Fibre Reinforced High-Performance Concrete Slabs

Smarzewski

2019

Processes

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This paper presents the experimental results obtained with the non-contact three-dimensional deformation measuring system–ARAMIS and finite element analysis performed using ANSYS of three slabs made of high-performance concrete (HPC) and hybrid (steel/ST and polypropylene/PP) fibre reinforced high-performance concrete (FRHPC). The research was performed on reinforced concrete (RC) slabs with a web mesh of ϕ8 mm bars. All the slabs had an identical amount of steel bars and differed by the fibre volume content. The main objective of the research was to determine the impact of adding polypropylene and steel fibres on the carrying capacity and ductility of HPC slabs. Analysis of the results was conducted based on load–deflection curves, crack distribution, vertical displacements and strains. The research findings indicate that fibres may improve peak strength. The presence of PP and ST hybrid fibres in HPC restricted the propagation of cracks. The energy absorption capacity as well as the ductility index of HPC can be raised by adding hybrid fibres. A comparison of the experimental test results with the nonlinear finite element analysis is made. The numerical results concurred well with the experimental data. The research results indicate that non-contact measurement of deformation is an effective tool for monitoring crushing in FRHPC slabs.

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Section: Materials Propertiesmentioning

confidence: 99%

Processes of Cracking and Crushing in Hybrid Fibre Reinforced High-Performance Concrete Slabs

Smarzewski

2019

Processes

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“…The failure surface is depended on the radii r t , r c and the strength parameters: ξ and angle θ. Deviatory sectional radius r t is determined by the parameters a 0 , a 1 , a 2 selected in order that f t , f cb , f 1 lie on the limit surface. All the mentioned parameters are given in [11].…”

Section: Modelling Of High-strength Concretementioning

confidence: 99%

“…Reinforced HSC members required not only experimental testing, but also finite element modelling of the failure behaviour. Few researchers studied the finite element modelling of reinforced concrete beams [9][10][11] by using the ANSYS finite element package. However, the available publications on the finite element investigation of reinforced high-strength concrete beams are still limited.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis on the High-Strength Concrete Beams Ultimate Behaviour

Smarzewski

Stolarski

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Development of technologies of high-strength concrete (HSC) beams production, with the aim of creating a secure and durable material, is closely linked with the numerical models of real objects. The three-dimensional nonlinear finite element models of reinforced high-strength concrete beams with a complex geometry has been investigated in this study. The numerical analysis is performed using the ANSYS finite element package. The arc-length (A-L) parameters and the adaptive descent (AD) parameters are used with Newton-Raphson method to trace the complete load-deflection curves. Experimental and finite element modelling results are compared graphically and numerically. Comparison of these results indicates the correctness of failure criteria assumed for the high-strength concrete and the steel reinforcement. The results of numerical simulation are sensitive to the modulus of elasticity and the shear transfer coefficient for an open crack assigned to high-strength concrete. The full nonlinear load-deflection curves at mid-span of the beams, the development of strain in compressive concrete and the development of strain in tensile bar are in good agreement with the experimental results. Numerical results for smeared crack patterns are qualitatively agreeable as to the location, direction, and distribution with the test data. The model was capable of predicting the introduction and propagation of flexural and diagonal cracks. It was concluded that the finite element model captured successfully the inelastic flexural behaviour of the beams to failure.

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“…In many studies, the nonlinear analysis of the reinforced concrete structural elements were provided on the basis finite element method using existing software. The non-linear analysis of the shear failure mechanism of reinforced concrete beams was presented in [10,11]. The nonlinear analysis carried out a using numerical algorithm for the reinforced concrete shells under static and dynamic loading were presented in [12].…”

Section: Introductionmentioning

confidence: 99%