On the mixed mode I/II fracture properties of jute fiber-reinforced concrete

Razmi, A.; Mirsayar, MirMilad

doi:10.1016/j.conbuildmat.2017.05.034

Cited by 130 publications

(48 citation statements)

References 39 publications

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“…This paper examines the fracture resistance of concrete focusing on the strain‐based criteria, using edge cracked semicircular bend (SCB) specimens. The SCB specimen has been widely used for mixed‐mode fracture analysis of different engineering materials such as poly(methyl methacrylate), rock, concrete, and asphalt concrete . The mixed‐mode I/II stress intensity factors as well as the first nonsingular tangential strain term around the crack tip are calculated by using the numerical simulation for the SCB specimens.…”

Section: Introductionmentioning

confidence: 99%

“…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%

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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: Introductionmentioning

confidence: 99%

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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“…The fracture toughness of brittle materials is reduced due the existence of pre-existing cracks (Kato & Nishioka, 2005). Intensive theoretical and experimental studies have frequently devoted their effort to brittle failure in engineering structures and components with cracks and/or notches Aliha et al, 2014Aliha et al, , 2016Ayatollahi et al, 2015;Fakhri et al, 2017;Fayed, 2008Fayed, , 2017Fayed et al, 2008;Hammouda et al, 2003aHammouda et al, , 2004Hammouda et al, , 2002Razmi & Mirsayar, 2017;Wei et al, 2016Wei et al, , 2017a. It was experimentally noticed that crack extension occurred in mode I rather than shear mode or mixed mode.…”

Section: Introductionmentioning

confidence: 99%

Numerical evaluation of mode I/II SIF of quasi-brittle materials using cracked semi-circular bend specimen

Fayed¹

2018

10.5267/j.esm

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An in-house finite element code was utilized to evaluate mode I/II stress intensity factor (SIF) of an edge cracked semi-circular disc subjected to three-point bending. The specimen was considered as an isotropic and homogeneous material. Relative span length ratios of 0.3 to 0.8 in steps of 0.1 were invoked. Relative crack length ratios of 0.1, 0.2, 0.3, 0.4, 0.5 and 0.6 were analyzed with crack angles up to 60° in steps of 5°. At the same crack length, mode I SIF decreases with increasing crack angle or decreasing the span length. The range of pure mode II decreases with increasing the span length. For the same crack length, the crack angle corresponding to the transition from a mixed mode I/II to a pure mode II increases with increasing the relative span length ratio. On the contrary, that angle decreases with increasing the crack length for the same span length. Good agreement has been generally obtained with relevant results found in the literature.

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“…Erdogan & Sih (1963), Williams & Ewing (1972) and Theocaris (1984) used a rectangular plate containing an inclined center crack subjected to a uniform far field tension in their mixed mode fracture studies. The symmetric and asymmetrically loaded three or fourpoint bend specimens were also employed by researchers for investigating mode I and mixed mode brittle fracture (Fett et al, 1995;Xeidakis et al, 1996;Suresh et al, 1990, Aliha et al 2009Razavi et al, 2017Bahmani et al 2017;Heidari-Rarani et al, 2014), Disc type specimens including the centrally cracked Brazilian disk (BD) specimen, centrally cracked/notched ring specimen subjected to diametrall compression, edge notch disc bend (ENDB) and the semi-circular bend (SCB) specimen have been frequently employed for determining the mixed mode fracture resistance of various engineering materials such as rocks, graphite, concretes and polymers (Awaji & Sato, 1978;Ayatollahi et al, 2006;Ameri et al 2012Ameri et al ,2016Razmi & Mirsayar, 2017;Alhasan 2013;Fakhri et al 2017, Aliha et al 2008,2015a,c, 2017, Abd-Elhady 2013Al-Hdabi et al 2014;Dehghany et al 2017. However, some of these specimens have certain shortcomings.…”

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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On the mixed mode I/II fracture properties of jute fiber-reinforced concrete

Cited by 130 publications

References 39 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

Numerical evaluation of mode I/II SIF of quasi-brittle materials using cracked semi-circular bend specimen

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

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