Fracture Mechanics and Size Effect of Concrete in Tension

Tang, Tianxi; Shah, Surendra P.; Ouyang, C.

doi:10.1061/(asce)0733-9445(1992)118:11(3169)

Cited by 49 publications

(16 citation statements)

References 10 publications

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“…The numerical results of K s IC in TPFM and G FB in SEM are very similar (Tang et al 1992, Bazant et al 1991, Bazant 1994, 2002 and approximately equivalent throughout the whole size range and the second parameter of each model can be obtained by…”

Section: Comparative Study and Size-effect Behaviorsupporting

confidence: 56%

Fracture Mechanics of Concrete – State-of-the-Art Review

Kumar

Barai

2010

Concrete Fracture Models and Applications

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Section: Comparative Study and Size-effect Behaviorsupporting

confidence: 56%

Fracture Mechanics of Concrete – State-of-the-Art Review

Kumar

Barai

2010

Concrete Fracture Models and Applications

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“…1b (Neville, 2011;Davies and Bose, 1960). Tang et al (1992) investigated the effect of distributed load in three-point bending beams and split--tension cylinders. The nominal strength decreased with the increasing width of the distributed load in the split-tension cylinder, whereas this effect was not significant in the bending specimens.…”

Section: A Historical Overview Of Splitting Testsmentioning

confidence: 99%

The fracture mechanics formulas for split-tension strips

İnce

2017

jtam

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The notched beams have been commonly used in concrete fracture. In this study, the splitting-strip specimens, which have some advantages -compactness and lightness -compared to beams, are analyzed for effective crack models. Using the Fourier integrals and Fourier series, a formula for the maximum tensile strength of concrete is first derived for an un-notched splitting-strip in the plane of loading. Subsequently, the linear elastic fracture mechanics formulas of the splitting-strip specimens, namely the stress intensity factor K I , the crack mouth opening displacement CMOD, and the crack opening displacement profile COD, are determined for different load-distributed widths via the weight function.

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“…This test was successfully applied to cubes by Nilsson in 1961. However, split‐tension test specimens, namely cylinders, cubes and diagonal cubes, have also been successfully utilised in concrete fractures over the last decade . As shown in Figure a, the split‐tension specimen is placed between the platens of the test machine and the load is subsequently applied until failure, which is caused by splitting along the vertical diameter as a result of the lateral tensile stress occurred .…”

Section: A Historical Overview Of Splitting Testsmentioning

confidence: 99%

“…Tang et al . investigated the effect of distributed load in three‐point bending beams and split‐tension cylinders. The nominal strength decreased with increasing width of the distributed load in the split‐tension cylinder, whereas this effect was not significant in the bending specimens.…”

Section: A Historical Overview Of Splitting Testsmentioning

confidence: 99%

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The Effect of Size on the Splitting Strength of Cubic Concrete Members

İnce

Gör

Eren

et al. 2014

Strain

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In the study of concrete fractures, split-tension specimens, such as cylinders, cubes and diagonal cubes, are frequently preferred to beams. However, experimental investigations on concrete reveal that for the same specimen geometry, the nominal strength of specimen decreases with increasing specimen size. This phenomenon is named as the size effect in the fracture mechanics of concrete. Although nominal strength is also highly affected by the width of the distributed load in the split-tension cylinder and cube specimens, this effect can be negligible within the practical range of the load-distributed width in the diagonal cubes. However, the number of theoretical and experimental studies with diagonal split-tension specimens is limited. Besides, a size effect formula for estimating the split-tensile strength of the diagonal cube specimens has not been proposed. In this study, nine series of cube and diagonal cube specimens, with three different sizes but similar geometries, were tested under different load-distributed widths. The ultimate loads obtained from the test results are analysed by the modified size effect law. Subsequently, prediction formulas are proposed, and they are compared with historical test data from the split-cylinder specimens.

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Fracture Mechanics and Size Effect of Concrete in Tension

Cited by 49 publications

References 10 publications

Fracture Mechanics of Concrete – State-of-the-Art Review

Fracture Mechanics of Concrete – State-of-the-Art Review

The fracture mechanics formulas for split-tension strips

The Effect of Size on the Splitting Strength of Cubic Concrete Members

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