Simplified Test of Cracking Strength of Concrete Element Subjected to Pure Shear

Yoshitake, Isamu; Uno, Tatsuo; Scanlon, Andrew; Hamada, Shigeru

doi:10.1061/(asce)mt.1943-5533.0000259

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…Table 1 summarizes the chosen mechanical properties for each phase. The values for shear strength (cohesion) of Portland cement are determined in agreement with empirical relations [32,33]. One can note that aggregate is much stiffer than the cement matrix and is kept linear elastic.…”

Section: Uniaxial Tension Testsupporting

confidence: 56%

Concrete meso-scale model with full set of 3D failure modes with random distribution of aggregate and cement phase. Part I: Formulation and numerical implementation

Karavelić

Nikolić

Ibrahimbegović

et al. 2019

Computer Methods in Applied Mechanics and Engineering

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Prediction of failure mechanisms in concrete is a fairly complex task due to heterogeneous concrete microstructure, localization process triggered by cracks, multiple crack interactions during their growth and coalescence, and different dissipative mechanisms in a fracture process zone prior to localized failure and in a localization zone during the failure. None of the currently used phenomenological models can represent the full set of 3D failure modes. This work presents an attempt to solve this with the 3D meso-scale model based on discrete lattice approach. In particular we show that we can capture such complexities at the meso-scale, which is able to represent microcracks in fracture process zone along with the localized failure represented in terms of embedded strong discontinuity and accompanied with softening constitutive law. The model can also successfully simulate salient features of concrete response, such as order of magnitude of reduction in strength in uniaxial tension versus compression, strength increase in biaxial loading or hydrostatic tension. Moreover, macro-scale representation of failure surfaces obtained with presented model for different loading programs confirms the need for failure concrete criterion of multi-surface kind. Part I of this work presents the proposed meso-scale based on extensive number of numerical simulations with multiple realizations of different concrete specimens, along as the optimal deterministic fit for several common concrete failure models. The ultimate interest of the work is to provide detailed data set for different failure modes which can be used for identification of probability distribution of material parameters for different criteria. Such task is carried in Part II of this work. c

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Section: Uniaxial Tension Testsupporting

confidence: 56%

Concrete meso-scale model with full set of 3D failure modes with random distribution of aggregate and cement phase. Part I: Formulation and numerical implementation

Karavelić

Nikolić

Ibrahimbegović

et al. 2019

Computer Methods in Applied Mechanics and Engineering

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show abstract

“…This suggests that the shear strength of plain concrete is not represented by these equations. Yoshitake et al [ 16 ] has proposed the equation for pure shear strength of concrete, albeit with two reinforcing cross bars, as follows:

f_{ps} goodbreak= 0.21 goodbreak\times f'_{c}^{\frac{2}{3}},

where

f_{ps}

is the pure shear strength (MPa) and

f'_{c}

is the cylinder compressive strength (MPa).…”

Section: Resultsmentioning

confidence: 99%

“…This suggests that the shear strength of plain concrete is not represented by these equations. Yoshitake et al [16] has proposed the equation for pure shear strength of concrete, albeit with two reinforcing cross bars, as follows:…”

Section: Dilation Angle 31mentioning

confidence: 99%

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Shear strength of plain concrete

Jajodia

Gadve

2023

Strain

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Concrete shear strength is one of important parameters in structural design and analysis. Brittle failure of concrete under shear has substantial impact on performance of structure. Concrete shear strength as stipulated in standard codes of different nations is based on RC beam elements. Majority of research also focused on reinforced elements or on indirect shearing. There have been few studies performed on plain concrete subjected to pure shear. Hence, pure shear strength of plain concrete is not established. In light of foregoing, the present work attempts to build loading method that is efficient and capable of creating uniform shear force in standard specimen. The study investigates fracture behaviour of plain concrete when subjected to pure shear force. The pure shear state of specimen is verified using Mohr's circle method. FEA is performed to validate experimental data. The proposed test set-up is effective in determining pure shear strength of plain concrete.

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A novel method of predicting shear strength of fiber-reinforced high-strength concrete based on cube specimens: part-1

Cherukupally,

Garje

2023

Innov. Infrastruct. Solut.

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Simplified Test of Cracking Strength of Concrete Element Subjected to Pure Shear

Cited by 7 publications

References 8 publications

Concrete meso-scale model with full set of 3D failure modes with random distribution of aggregate and cement phase. Part I: Formulation and numerical implementation

Concrete meso-scale model with full set of 3D failure modes with random distribution of aggregate and cement phase. Part I: Formulation and numerical implementation

Shear strength of plain concrete

A novel method of predicting shear strength of fiber-reinforced high-strength concrete based on cube specimens: part-1

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