Study on the effect of micro-geometric heterogeneity on mechanical properties of brittle rock using a grain-based discrete element method coupling with the cohesive …
The micro-geometric heterogeneity has a significant effect on the mechanical behavior and
failure mode of brittle rocks. To study the influence of the size distribution and preferred …
failure mode of brittle rocks. To study the influence of the size distribution and preferred …
Characterization of the negative Poisson's ratio effect of the thermal-damaged crystalline rock by the grain-based model
A natural rock often has a positive Poisson's ratio during compression. However, the thermal-
damaged rock can abnormally present a negative Poisson's ratio. Thus far, the related …
damaged rock can abnormally present a negative Poisson's ratio. Thus far, the related …
[HTML][HTML] Size effects on the tensile strength and fracture toughness of granitic rock in different tests
This study investigates the tensile failure mechanisms in granitic rock samples at different
scales by means of different types of tests. To do that, we have selected a granitic rock type …
scales by means of different types of tests. To do that, we have selected a granitic rock type …
[HTML][HTML] A universal direct tensile testing method for measuring the tensile strength of rocks
Y Wu, J Liu, Z Wu, J Liu, Y Zhao, H Xu, J Wei… - International Journal of …, 2024 - Elsevier
There is limited applicability to the current method for testing the direct tensile strength of
rocks because it places stringent requirements on the testing equipment. This work suggests …
rocks because it places stringent requirements on the testing equipment. This work suggests …
Micro-scale fracturing mechanisms in rocks during tensile failure
Understanding the fracturing mechanisms of rock on both macro-and micro-scale is
important for properly designing rock engineering applications. However, there is still a lack …
important for properly designing rock engineering applications. However, there is still a lack …
Rate effect on the direct shear behavior of granite rock bridges at low to subseismic shear rates
G Luo, S Qi, B Zheng - Journal of Geophysical Research: Solid …, 2022 - Wiley Online Library
Natural faults are often heterogeneous with spatially variable cohesion caused by healing
processes. Using rock bridges as laboratory analogs, we investigate how cohesion‐healed …
processes. Using rock bridges as laboratory analogs, we investigate how cohesion‐healed …
Laboratory test study on supercritical carbon dioxide fracturing granite: a quantitative review
Supercritical carbon dioxide (ScCO2) fracturing to transform geothermal reservoirs is a new
technology in geothermal development, with great prospects. In this paper, the current …
technology in geothermal development, with great prospects. In this paper, the current …
Simulation of brittle failure around Canada's mine-by experiment tunnel using 2D continuum-based Voronoi tessellated models
The failure process of brittle rocks under compression involves the initiation, accumulation
and propagation of tensile fractures before peak stress is reached. This process is …
and propagation of tensile fractures before peak stress is reached. This process is …
Measurement of true tensile strength from Brazilian tensile strength laboratory tests
Brazilian tensile strength (BTS) testing in standard practice is a practical method to
approximate tensile strength for rock core using the conversion of axial compressive vertical …
approximate tensile strength for rock core using the conversion of axial compressive vertical …
[HTML][HTML] Tensile strength and failure behavior of rock-mortar interfaces: Direct and indirect measurements
The tensile strength at the rock-concrete interface is one of the crucial factors controlling the
failure mechanisms of structures, such as concrete gravity dams. Despite the critical …
failure mechanisms of structures, such as concrete gravity dams. Despite the critical …