New Biaxial Failure Criterion for Brittle Materials in Compression

Zhu, Zhouyuan

doi:10.1061/(asce)0733-9399(1999)125:11(1251)

Cited by 34 publications

(27 citation statements)

References 18 publications

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“…Tensile loads mainly induce K I at crack tips, whereas, compressive loads mainly induce K II at crack tips, so there exists a large difference between these two kinds of loads. For the problem of a finite plane with a single crack under compression, the solution has been investigated analytically and experimentally [9][10][11][12][19][20][21]. For a square plate with three collinear cracks, Jin et al [6] obtained a semi-analytical solution of SIFs by using complex functions, and the coefficients of the complex functions were determined through boundary collocation method.…”

Section: Introductionmentioning

confidence: 99%

Stress intensity factor for an infinite plane containing three collinear cracks under compression

et al. 2013

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The fracture behaviour of multi-cracked materials has become a key issue in fracture mechanics and has received large attention recently. In this paper, an infinite plane containing three collinear cracks under biaxial compression has been investigated. Considering crack surface friction and using complex stress function theory, the exact analytical solution of stress intensity factors (SIFs) for an infinite plane containing three collinear cracks is obtained. The corresponding finite element code of Abaqus is employed to validate the theoretical results, and its results agree very well with the theoretical results. The effects of confining stresses, crack distances and the crack surface frictions on SIFs are analyzed through the theoretical results and the Abaqus code. A photoelastic experiment was conducted to validate the theoretical result about the effect of confining stresses.

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Section: Introductionmentioning

confidence: 99%

Stress intensity factor for an infinite plane containing three collinear cracks under compression

et al. 2013

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“…In addition, in order to obtain a better prediction, the nonsingular stress field should be adopted in the initiation angle determination [18][19][20][21]. It should be noted that some criteria, such as Zhu [22,23], cannot predict crack initiation angles.…”

Section: Applicability Of Initiation Angle Predictionmentioning

confidence: 99%

Investigation on the Applicability of Several Fracture Criteria to the Mixed Mode Brittle Fractures

Ren

Zhu

Yang³

et al. 2013

Advances in Mechanical Engineering

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Mixed mode brittle fractures are very common failure behavior for cracked brittle materials under loading, and therefore, the prediction of the mixed mode brittle fractures is significant. In this paper, the authors attempt to make a detailed discussion on the applicability of several widely accepted fracture criteria to some brittle materials. By employing these criteria, several groups of experimental results of mixed mode brittle fractures were analyzed, and the applicability of each fracture criterion to some tested materials was also examined. The results show that many of the widely applied fracture criteria can provide a good estimation for predominately mode I fractures, but none of them can well predict predominately mode II fractures. Finally, the reasons of the failed prediction by these criteria were investigated, and several significant conclusions were presented.

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“…Zhu et al [10][11][12][13][14][15] conducted a number of studies on fracture criteria for a single crack and collinear cracks under compression loading conditions, but the crack behavior during the unloading process has not been focused. D. Huang and R. Q. Huang [8] conducted experiments to study the evolution of central fracture transformation and extension under equal confining pressure and unloading conditions.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on Deformation Fractures of Fissured Rock around Tunnels in True Triaxial Unloads

Wang

Zhu

Xie

2015

Advances in Materials Science and Engineering

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Joints and cracks are frequently encountered in underground rock mass. During the process of tunnel excavations or other underground construction, the rock will be exposed suddenly, and such sudden unloading process will cause crack expansion and destabilize the rock structure. In order to investigate the crack behaviour during this process, a true triaxial loading apparatus with a computer-controlled electrohydraulic servosystem was established, and a series of true triaxial loading and unloading experiments was conducted by using concrete specimens containing inclined cracks with inclinations of 15 ∘ , 30 ∘ , 45 ∘ , 60 ∘ , and 75 ∘ . The stressstrain behavior and the failure property of rock models during unloading process were obtained, and, additionally, the coefficient of brittle stress drop was investigated. The uniaxial compression tests were simulated by using finite element method.

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New Biaxial Failure Criterion for Brittle Materials in Compression

Cited by 34 publications

References 18 publications

Stress intensity factor for an infinite plane containing three collinear cracks under compression

Stress intensity factor for an infinite plane containing three collinear cracks under compression

Investigation on the Applicability of Several Fracture Criteria to the Mixed Mode Brittle Fractures

An Experimental Study on Deformation Fractures of Fissured Rock around Tunnels in True Triaxial Unloads

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