effect of sizes on strength of granite rock

Full Length ArticleSize effects on the tensile strength and fracture

2023.9.1 Size effect Tensile strength Fracture toughness Granite Finite fracture mechanics 1. Introduction Applied rock mechanics focuses the study of underground excavations, slopes, or foundations on rocks, in all of which materials are typically

Investigation into the effects of grain size on strength and failure ...

2021.7.13 In this study, in order to study the effect of grain size on the strength and failure behaviors of granites, a breakable polygonal UDEC–GBM for rock is proposed,

Size effect of mechanical characteristics of sandstone

2023.6.29 However, the strength of granite decreases by 35% as the size increases. The discrepancies in the failure of sandstone and granite are apparent, and the failure patterns of the same rock do not

Numerical simulation and interpretation of the grain size effect on ...

Mineral grain size of rock can influence linear thermal expansion coeffi- cients (de Castro Lima and Paraguassu ́ 2004), mag- netic properties (Ge and Liu 2014), relative

Effect of Thermal Treatment on Brazilian Tensile Strength of

2018.1.23 The main aim of this study is to investigate the thermal effect on the Brazilian tensile strength of granites with similar mineralogical compositions but

Effect of Grain Size on the Dynamic Flexural Tensile Strength of ...

2023.3.10 On the one hand, with increasing grain size, the dynamic flexural tensile strength and proportion of transgranular cracks increase, while the total crack number

Influence of Grain Size and Saturation on the Fracture ... - Springer

2022.9.1 Thus, the effect of grain size on the K IC ... Li XB, Xia KW et al (2012) Effect of thermal treatment on the dynamic fracture toughness of laurentian granite.

Size effects on the tensile strength and fracture toughness of

2022.12.1 Size effects on the tensile strength and fracture toughness of granitic rock in different tests Semantic Scholar. DOI: 10.1016/j.jrmge.2022.11.005. Corpus ID:

Influence of Grain Size on Granite Strength and Toughness with ...

2018.7.1 The size and boundary effects of quasi-brittle fracture have been studied systematically in recent decades [13,18,19,26,27], and some progresses have been

Size effects in the uniaxial compressive properties of 3D printed ...

2022.11.4 In addition, the stress–strain curves were close to each other and did not exhibit the size effect, which agrees with the size effect on the uniaxial compressive properties of dense homogeneous granite and limestone (Thuro et al. 2001); in other words, the uniaxial compressive performance of the model with uniform material and without

(PDF) Size effects on the tensile strength and fracture toughness

2022.12.7 Size effects on the tensile strength and fracture toughness of granitic rock in differ ent tests Ignacio Pérez-Rey 1, 2, *, Andrea Muñoz-Ibáñez 2 ,3 , Manuel A. Gon zález-Fernández 2 , Mauro ...

Size effects on granite behavior under unloading rockburst test

2016.5.23 Based on previous studies of rock behavior versus rock sample size and various research on rockburst simulation tests, a modified true-triaxial unloading testing machine was utilized to perform rockburst tests on granite specimens with changing heights for size effect investigation. The parameter of the height-to-thickness ratio (H/T) is

Analysis of size effects on the geomechanical parameters of intact ...

2017.3.7 A total of 28 uniaxial compressive strength tests were performed on cylindrical Blanco Mera granite samples with diameters ranging between 14 and 100 mm, with results indicating that this granite undergoes a significant reverse size effect: the UCS increases as sample diameter increases up to 54 mm, but thereafter decreases. It was

Influence of Grain Size and Saturation on the Fracture ... - Springer

2022.9.1 Thus, the effect of grain size on the K IC ... Li XB, Xia KW et al (2012) Effect of thermal treatment on the dynamic fracture toughness of laurentian granite. Rock Mech Rock ... Calculation for tensile strength and fracture toughness of granite with three kinds of grain sizes using three-point-bending test. PLoS ONE 13(3):e0180880.

Effect of Grain Size on the Mechanical Behaviour of Granite Under

2020.11.23 To mitigate the effects of sample differences, at least three of the same type of sample were collected form one same rock block. Then, according to the ISRM test standard, the two types of granite were processed into standard cylinders of Φ 50 mm × 100 mm by coring and turning, as shown in Fig. 1.. 2.2 Experimental Setup and Procedures

Effect of the mineral spatial distribution ... - ScienceDirect

2023.5.1 1. Introduction. As a crystalline rock, both the macro-scale mechanical properties and deformation characteristics of granite are affected by its internal microstructure (Martin and Chandler, 1994; Yilmaz et al., 2011; Sajid et al., 2016; Cowie and Walton, 2018).The heterogeneity of the spatial distribution of minerals attributed to the

Study on the Coupling Effect of Sample Size and Strain Rate on Rock

2023.4.9 Therefore, in the present paper the coupling effect of sample size and strain rate on compressive strength of rock is studied theoretically. In the quasi-static loading regime, the formula for the ...

The Effect of Grain Size Heterogeneity on Mechanical and

2023.5.25 The effect of grain size heterogeneity on the mechanical and microcracking behavior of Lac du Bonnet (LdB) granite during heating, cooling, and uniaxial compression loading is investigated using a grain-based model. By defining a grain size heterogeneity index H, the heterogeneity induced by variation of grain size distribution

Effect of Grain Size on the Mechanical Behaviour of Granite

2021.2.1 Quenching or injecting cold water into HDRs would further weaken the rock and induce thermal damage to the rock structure. The strength of rock would be further quench-weakened by 10%, 20% and 30% ...

Dynamic Split Tensile Strength of Basalt, Granite, Marble

2022.9.28 The aim of this study is to understand the strength behaviour and fragment size of rocks during indirect, quasi-static and dynamic tensile tests. Four rocks with different lithological characteristics, namely: basalt, granite, sandstone, and marble were selected for this study. Brazilian disc experiments were performed over a range of strain

Effect of Open-Fire-Induced Damage on Brazilian Tensile Strength

2019.5.30 Zhao ZH, Liu ZN, Pu H, Li X (2018) Effect of thermal treatment on Brazilian tensile strength of granites with different grain size distributions. Rock Mech Rock Eng 51(4):1293–1303. Google Scholar Zhu WC, Tang CA (2006) Numerical simulation of Brazilian disk rock failure under static and dynamic loading.

Numerical simulation and interpretation of the grain size effect on ...

interpret the grain size effect on rock strength from the ... while the grain sizes of CG granite are distributed mainly from 0.2 mm to 90 lm, with a few larger grains over 0.3 mm.

Effect of Anisotropy on the Long-Term Strength of Granite Rock

2014.7.23 Granite rock mass is used for various rock engineering purposes. To ensure long-term stability, information about the subcritical crack growth (SCG) and an estimate of the long-term strength (LTS) of the rock are necessary. The influence of the anisotropy of granite on its LTS has not yet been clarified. In this study, the anisotropy of

Influence of grain size on strength of polymineralic crystalline rock ...

2021.3.6 DOI: 10.1016/J.JRMGE.2021.01.011 Corpus ID: 233845489; Influence of grain size on strength of polymineralic crystalline rock: New insights from DEM grain-based modeling @article{Peng2021InfluenceOG, title={Influence of grain size on strength of polymineralic crystalline rock: New insights from DEM grain-based modeling},

Size effect of mechanical characteristics of sandstone and granite ...

2023.6.29 In this study, granite (an igneous rock) and sandstone (a sedimentary rock) are selected to study the size effect of square samples ranging from 10-to-25 mm. By analyzing the stress–strain curve, elastic modulus, uniaxial compressive strength, and failure mode of rock specimens, the size effect on the mechanical characteristics of

Effects of Rock Specimen Size on Mechanical Properties in

2021.2.18 The design of rock engineering projects requires an estimation of the strength of intact rock blocks. These blocks can be significantly larger than the typical laboratory test specimen; thus, understanding the specimen size effect on mechanical properties is essential.

Uniaxial Compressive Behavior of Granite at High Strain Rates Rock

2021.6.20 Additionally, the size effect on the dynamic strength may result in the controversial judgment for the same granite (Krauthammer et al. 2003; Elfahal et al. 2005; Qi et al. 2016). In this study, to understand the dynamic behavior of the widely used building granite quarried in China, granite cylinders were made for static and dynamic tests.

Mechanical Behavior of Granite with Different Grain Sizes After

2019.11.23 Grain size has a significant effect on the mechanical behaviors of granite. ... (2017) Quantification of microcrack characteristics and implications for stiffness and strength of granite. Int J Rock Mech Min 100:138–150. Article Google Scholar Gui YL, Zhao ZY, Ji J, Wang XM, Zhou KP, Ma SQ (2016) The grain effect ...

Calculation for tensile strength and fracture toughness of granite

2018.3.29 Tensile strength and fracture toughness, important parameters of the rock for engineering applications are difficult to measure. Thus this paper selected three kinds of granite samples (grain sizes = 1.01mm, 2.12mm and 3mm), used the combined experiments of physical and numerical simulation (RFPA-DIP version) to conduct three