Fracture surface morphology of brittle geomaterials influenced by loading rate and grain size

M Ju, J Li, X Li, J Zhao - International Journal of Impact Engineering, 2019 - Elsevier
The fracture surface roughness of grain-based geomaterials is one of the significant factors
reflecting the changes in certain physical and mechanical properties. In this paper, the …

Dynamic mechanical properties and fracturing behaviour of concrete under biaxial compression

HC Wang, J Zhao, J Li, K Liu, CH Braithwaite… - … and Building Materials, 2021 - Elsevier
Heterogeneity is an important factor affecting the dynamic mechanical properties and failure
process of geomaterials especially when considering the coupled effect of strain rates and …

Micro-scale fracturing mechanisms in rocks during tensile failure

G Shams, P Rivard, O Moradian - Rock Mechanics and Rock Engineering, 2023 - Springer
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 …

Sensitivity of the damage response and fracture path to material heterogeneity present in a sandstone specimen containing a pre-existing 3-D surface flaw under …

S Mondal, LM Olsen-Kettle, L Gross - Computers and Geotechnics, 2020 - Elsevier
The heterogeneity of natural rock affects its fracture behaviour resulting in a variation of rock
strength. To investigate the sensitivity of damage response and failure strength across rock …

Approach to characterize rock fracture surface: Insight from roughness and fractal dimension

B Li, W Zhang, Y Xue, Z Li, F Kong, R Kong… - Engineering Geology, 2023 - Elsevier
The characterization of rock fracture is essential for revealing and understanding the fracture
mechanism. In this research, the fracture of sandstone is characterized from the perspective …

Dynamic shear fracture behavior of rocks: insights from three-dimensional digital image correlation technique

C Zhang, D Li, J Ma, Q Zhu, P Luo, Y Chen… - Engineering Fracture …, 2023 - Elsevier
The influence of the loading rate on the mode I fracture property of rocks has been
extensively investigated through experiments. However, the rate-effect of the dynamic mode …

A new experimental approach to quantify microfractures in the Fracture Process Zone (FPZ) under various loading conditions

M Ghamgosar, M Bahaaddini, N Erarslan… - Engineering …, 2021 - Elsevier
Rock fracturing or breakage is a complex phenomenon that requires advanced and
sophisticated techniques to predict fracture initiation and propagation in geological …

Comparison of surface properties in natural and artificially generated fractures in a crystalline rock

D Vogler, SDC Walsh, P Bayer, F Amann - Rock Mechanics and Rock …, 2017 - Springer
This work studies the roughness characteristics of fracture surfaces from a crystalline rock by
analyzing differences in surface roughness between fractures of various types and sizes. We …

Fractal kinematics of crack propagation in geomaterials

H Xie, DJ Sanderson - Engineering Fracture Mechanics, 1995 - Elsevier
Experimental results indicate that propagation paths of cracks in geomaterials are often
irregular, producing rough fracture surfaces which are fractal. A formula is derived for the …

Experimental investigation on the fracture surface features of heat-treated red sandstone containing fissure under constant amplitude low cycle impact using 3D digital …

Y Chen, T Yin, Q Li, D Zhuang, Y Wu, F Jin… - Engineering Fracture …, 2023 - Elsevier
Fractured rocks as typical engineering materials are commonly exposed to temperatures
and dynamic perturbations. In this paper, constant amplitude low cycle (CALC) impact tests …