The role of T-stress on kinking angle of interface cracks

Mirsayar, MirMilad; Park, P.

doi:10.1016/j.matdes.2015.05.007

Cited by 46 publications

(15 citation statements)

References 39 publications

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“…Ayatollahi et al, 2010a, b;Mirsayar, 2014a;Mirsayar & Park, 2015, Mousavi & Aliha 2016. However, for a conventional fracture test specimen made of a single material, the specimen can be characterized only by its geometry.…”

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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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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“…Generally speaking, a variety of fracture criteria are available in the literature to assess brittle fracture characteristics of materials. Three categories of criteria are used: energybased, [11][12][13][14][15] stress-based, [16][17][18][19][20] and strain-based [21][22][23][24][25][26][27] criteria. Each classification employs a different concept to describe the fracture mechanism and has intrinsic advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

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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“…In other words, this movement can be analyzed using an interfacial fracture model. The process of crack initiation and propagation at the interface of two dissimilar materials (He & Hutchinson, 1989;Hurd et al, 1995;Martin et al, 2001;Evans et al, 1990;Ayatollahi et al, 2010a;Mirsayar, 2014a;Campilho et al, 2011;Álvarez et al, 2014; and in different engineering materials (Arabi et al,74 2013; Ayatollahi et al, 2010bAyatollahi et al, , 2013Mirsayar, 2013Mirsayar, , 2014bMirsayar, ,c, 2015aMirsayar, ,b, 2017Mousavi & Aliha 2016;Mohammad Aliha et al 2017;Mirsayar et al, , 2017aMirsayar & Park, 2015Mirsayar & Takabi, 2016;Razmi & Mirsayar, 2017) has widely been studied in the past. Depending on the bond strength, the mechanism of interfacial crack propagation can be classified into two types: strong interfaces, and weak interfaces.…”

Section: Fracture Criteria For Bonded Structuresmentioning

confidence: 99%

Factors influencing stresses and movements in continuously reinforced concrete pavements – A review

Mirsayar¹,

Zollinger²

2018

10.5267/j.esm

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The use of cement concrete as a stronger and more durable material than asphalt concrete in construction of the pavements has been increased during the past decades. This review paper investigates the effect of various input variables for the design of continuously reinforced concrete pavements. A literature review is prepared based on the efforts performed by many researchers to investigate the effect of different factors including temperature change, shrinkage, material properties of the concrete, and concrete slab/ subbase bond properties on the displacements and stresses in the concrete slab. It is found that the important role of concrete slab/ subbase bond strength has not been investigated properly as compared to other input variables.

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The role of T-stress on kinking angle of interface cracks

Cited by 46 publications

References 39 publications

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

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

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

Factors influencing stresses and movements in continuously reinforced concrete pavements – A review

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