The Brazilian Disc Test for Rock Mechanics Applications: Review and New Insights

  title={The Brazilian Disc Test for Rock Mechanics Applications: Review and New Insights},
  author={Diyuan Li and L. Wong},
  journal={Rock Mechanics and Rock Engineering},
The development of the Brazilian disc test for determining indirect tensile strength and its applications in rock mechanics are reviewed herein. Based on the history of research on the Brazilian test by analytical, experimental, and numerical approaches, three research stages can be identified. Most of the early studies focused on the tensile stress distribution in Brazilian disc specimens, while ignoring the tensile strain distribution. The observation of different crack initiation positions… Expand
Experimental Study of Strain Rate Sensitivity to Fracture Toughness of Rock using Flattened Brazilian Disc
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The Brazilian splitting test is commonly used in order to estimate the tensile strength of brittle materials such as rocks and concretes. This test is performed by compressing a specimen disc in theExpand
Numerical assessment of rupture mechanisms in Brazilian test of brittle materials
Abstract Due to the difficulties associated with performing a direct uniaxial tensile test, the tensile strength of brittle materials is commonly estimated indirectly. The Brazilian test is probablyExpand
Evaluation on Rock Tensile Failure of the Brazilian Discs under Different Loading Configurations by Digital Image Correlation
The fracture behavior of the disc specimens in the Brazilian test is closely related to the reliability and accuracy of the experimental results. To comprehensively investigate the effect of variousExpand
Modified Formula for the Tensile Strength as Obtained by the Flattened Brazilian Disk Test
Tensile strength, one of the basic mechanical parameters for rocks and rock-like materials, is generally determined through direct and indirect testing methods. The Brazilian test, a typical indirectExpand
Effects of Micro-structure and Micro-parameters on Brazilian Tensile Strength Using Flat-Joint Model
Abstract It has been widely accepted that tensile strength plays a dominant role in the failure mechanism of rock or rock-like material. Tensile strength is determined mainly via two methods: theExpand
Numerical Simulation of the Effect of Loading Angle on Initial Cracks Position Point: Application to the Brazilian Test
The Brazilian Test is the most used test to determine the indirect tensile strength for brittle materials like concrete. It has been observed that the success of the test depends on the cracksExpand
Numerical analysis of the flattened Brazilian test: Failure process, recommended geometric parameters and loading conditions
Abstract The Brazilian test (BT) has been criticized since crack initiation occurs away from the center of the disk due to the stress concentrations at the loading ends. Therefore, two parallel flatExpand
DEM analysis of failure mechanisms in the intact Brazilian test
Abstract A comprehensive numerical study is conducted to examine the failure behaviors in the intact Brazilian test. Brazilian test is considered a robust laboratory test to obtain an indirectExpand
A study of crack initiation and source mechanism in the Brazilian test based on moment tensor
Abstract It has been widely accepted that the Brazilian test can be used to obtain the indirect tensile strength of geo-materials. However, the effects of the contact conditions and the heterogeneityExpand


Experimental, numerical and analytical studies on tensile strength of rocks
The difficulties associated with performing a direct uniaxial tensile test on a rock specimen have led to a number of indirect methods for assessing the tensile strength. This study comparesExpand
Experimental and Numerical Studies on Determination of Indirect Tensile Strength of Rocks
Indirect tension tests using Brisbane tuff Brazilian disc specimens under standard Brazilian jaws and various loading arcs were performed. The standard Brazilian indirect tensile tests causedExpand
Brazilian test : stress field and tensile strength of anisotropic rocks using an analytical solution
Tensile strength of rock is among the most important parameters influencing rock deformability, rock crushing and blasting results. To calculate the tensile strength from the indirect tensileExpand
The flattened Brazilian disc specimen used for testing elastic modulus, tensile strength and fracture toughness of brittle rocks; analytical and numerical results
Abstract The flattened Brazilian disc specimen is proposed for determination of the elastic modulus E , tensile strength σ t and opening mode fracture toughness K IC for brittle rocks in just oneExpand
Microcrack modelling of Brazilian tensile tests with the boundary element method
Abstract This study focuses on the influence of initiated cracks on the stress distribution within rock samples subjected to indirect tensile loading by traditional Brazilian testing. The numericalExpand
Investigating the Effect of Cyclic Loading on the Indirect Tensile Strength of Rocks
This paper presents the results of laboratory experiments during the investigation of the stress–strain characteristics of Brisbane tuff disc specimens under diametral compressive cyclic loading. TwoExpand
3-D distribution of tensile stress in rock specimens for the Brazilian test
It is claimed that the formula used for calculating the tensile strength of a disk-shaped rock specimen in the Brazilian test is not accurate, because the formula is based on the 2-dimensionalExpand
The extensively used formula for estimating the tensile strength of rocks under the Brazilian test is based on the 2D elastic theory and only suitable for very long or very short cylinders.Expand
The controlled failure of rock discs and rings loaded in diametral compression
The diametral compression of discs (the Brazilian test) and of rings induces a zone of tensile stress in the specimens. If, as the load is increased, failure occurs in the tensile zone, then theseExpand
Position and load of failure in Brazilian test; A numerical analysis by Griffith criterion.
Failure in the Brazilian test (diametral compression of a disc) has been numerically analyzed on the basis of the Griffith fracture criterion. The analysis indicates that the angle subtended by theExpand