Mixed mode brittle fracture analysis of high strength cement mortar using strain-based criteria

Mirsayar, MirMilad; Park, P.

doi:10.1016/j.tafmec.2016.07.007

Cited by 43 publications

(11 citation statements)

References 53 publications

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“…By employing the calculated values of the crack tip parameters Y I , Y II , and T * , the fracture curves are plotted by using different fracture criteria. The critical distance of r c = 2.3 mm is selected for the concrete materials that correlate well with the previously reported values . Figure shows the test data along with the theoretical predications based on the conventional fracture criteria (SED, MTS, and MTSN) for the mixed‐mode fracture toughness of cement concrete tested by SCB specimens.…”

Section: Resultssupporting

confidence: 62%

“…Several research papers have been published by many researchers so far investigating mixed-mode brittle fracture behaviour of engineering components made of cement concrete. [1][2][3][4][5][6][7][8][9][10] However, it has always been a major concern to find a criterion that can properly evaluate the fracture behaviour of cement concrete under mixed-mode loading conditions. Generally speaking, a variety of fracture criteria are available in the literature to assess brittle fracture characteristics of materials.…”

Section: Introductionmentioning

confidence: 99%

“…However, in reality, a combination of all 3 modes occurs for a crack existing in an in‐service structure. Several research papers have been published by many researchers so far investigating mixed‐mode brittle fracture behaviour of engineering components made of cement concrete . However, it has always been a major concern to find a criterion that can properly evaluate the fracture behaviour of cement concrete under mixed‐mode loading conditions.…”

Section: Introductionmentioning

confidence: 99%

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Tangential strain‐based criteria for mixed‐mode I/II fracture toughness of cement concrete

Mirsayar

Razmi

Berto

2017

Fatigue Fract Eng Mat Struct

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Experimental and theoretical works are performed on the mixed-mode I/II brittle fracture of cement concrete tested by edge cracked semicircular bend specimens. Theoretical background of the traditional fracture criteria including strain energy density, maximum tangential stress, and maximum tangential strain (MTSN) are introduced. The ability of each fracture criterion in prediction of the fracture test data is investigated. The comparison between the evaluations by the traditional criteria and the experimental data shows that none of them are capable of successfully estimating the fracture resistance of cement concrete. An enhanced version of the MTSN criterion is then employed to predict the test data. It is demonstrated that the extended MTSN criterion can successfully predict the test data in a higher accuracy than traditional criteria.

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Section: Resultssupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tangential strain‐based criteria for mixed‐mode I/II fracture toughness of cement concrete

Mirsayar

Razmi

Berto

2017

Fatigue Fract Eng Mat Struct

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“…Ambati et al, 2015;Ayatollahi et al, 2013;Lazzarin and Zambardi, 2001;Miehe et al, 2015;Maiti & Smith, 1983;Mirsayar 2015a, b;Mirsayar & Park 2016b;Aliha et al 2012;Mirlohi & Aliha 2013;Mirsayar, 2017;Mirsayar et al 2017a, b;Sih & Macdonald, 1974). While the experimental fracture studies on real components are often expensive and difficult, researchers prefer to conduct their experiments on laboratory specimens.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of interfacial bond strength between Portland cement concrete and asphalt concrete layers using bi-material SCB test specimen

Mirsayar¹,

Shi²,

Zollinger³

2017

10.5267/j.esm

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Portland cement concrete (PCC) / asphalt concrete (AC) bonded components are seen in both conventional pavement structures as well as overlays. Due to the environmental and traffic loads, cracks occur at the interface of the PCC and AC layers and finally, may propagate through the interface or one of the layers. Therefore, the evaluation of bond strength between these layers is important. This paper investigates bond strength between asphalt concrete and Portland cement concrete using a new sandwich test specimen. The developed specimen, called Bi-material semi-circular bend (BSCB) is made of asphalt concrete and the Portland cement concrete, cracked at the interface of the materials. First, the suggested specimen is introduced and characterized using finite element simulation. Then, the specimen is employed to obtain bond strength between asphalt concrete and Portland cement concrete under mixed mode loading, and at two temperatures: -20C and 20C. The fracture toughness at different mixed mode conditions is obtained, and finally, fracture criterion for the tested bonded joints is presented.

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“…Aliha and Saghafi pointed out that Poisson's ratio can remarkably affect the SIFs and T ‐stress. Poisson's ratio is a significant parameter for estimating the mixed mode crack initiation according to the EMTSN criterion, which is the distinguishing crux for the strain or stress‐based criteria …”

Section: Application Of Extended Maximum Tangential Strain Criterion mentioning

confidence: 99%

Mixed mode fracture analysis of CCBD specimens based on the extended maximum tangential strain criterion

Hua

Dong

Pan

et al. 2017

Fatigue Fract Eng Mat Struct

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The maximum tangential strain (MTSN) criterion has been modified to include the effects of T‐stress and stress intensity factors in conditions of both plane stress and plane strain. Further, both the T‐stress and Poisson's ratio affecting the crack propagation are also discussed according to the extended MTSN (EMTSN) criterion, which is a modified MTSN criterion. Finally, the generalized maximum tangential stress (GMTS) criterion and the EMTSN criterion are used to predict the test results obtained with central cracked Brazilian disc (CCBD) specimens. The results indicate that the T‐stress and Poisson's ratio have a remarkable influence on the mixed mode fracture resistance based on the EMTSN criterion. Theoretical values of both the EMTSN and the GMTS criteria are in very good agreement with the test results. Moreover, the EMTSN criterion provides a better prediction for pure mode II.

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Mixed mode brittle fracture analysis of high strength cement mortar using strain-based criteria

Cited by 43 publications

References 53 publications

Tangential strain‐based criteria for mixed‐mode I/II fracture toughness of cement concrete

Tangential strain‐based criteria for mixed‐mode I/II fracture toughness of cement concrete

Evaluation of interfacial bond strength between Portland cement concrete and asphalt concrete layers using bi-material SCB test specimen

Mixed mode fracture analysis of CCBD specimens based on the extended maximum tangential strain criterion

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