Effect of heat treatment on microcracking behaviors and Mode-I fracture characteristics of granite: An experimental and numerical investigation

Pan, Jiliang; Ma, Yichen; Zhang, Leiming; Xi, Xun; Zhang, Ying; Cai, Meifeng

doi:10.1016/j.tafmec.2024.104489

Theoretical and Applied Fracture Mechanics

2024

DOI: 10.1016/j.tafmec.2024.104489

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Effect of heat treatment on microcracking behaviors and Mode-I fracture characteristics of granite: An experimental and numerical investigation

Jiliang Pan,

Yichen Ma,

Leiming Zhang

et al.

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2024

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Cited by 3 publications

References 37 publications

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Effect of heat treatment on the shear fracture and acoustic emission properties of granite with thermal storage potential: A laboratory-scale test

Ma,

Li,

Zhao

et al. 2024

Theoretical and Applied Fracture Mechanics

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Effect of heat treatment on the shear fracture and acoustic emission properties of granite with thermal storage potential: A laboratory-scale test

Ma,

Li,

Zhao

et al. 2024

Theoretical and Applied Fracture Mechanics

View full text Add to dashboard Cite

Experimental study on evaluating fracture processes of different rocks using multiple physical parameters

Song,

Hu,

et al. 2024

Theoretical and Applied Fracture Mechanics

View full text Add to dashboard Cite

Effect of Thermal Cracking on the Tensile Strength of Granite: Novel Insights into Numerical Simulation and Fractal Dimension

Pan,

Zhang,

et al. 2024

Fractal Fract

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This study investigates the effect of thermal cracking on the tensile strength of granite through a combination of experimental testing and numerical simulations. The primary objective is to understand how thermal stress, induced by heat treatment at various temperatures (25 °C to 600 °C), influences crack initiation, propagation, and tensile strength changes. The granite specimens were subjected to Brazilian splitting tests after heat treatment, and the load–displacement curves and tensile strength variations with heat treatment temperature were analyzed. A grain-based model (GBM) was developed to simulate the complex cracking behavior, incorporating the mineral compositions and thermal expansion properties of the granite. The fractal dimension of the cracks was quantified using the box-counting method, and the relationship between fractal dimension and tensile strength was discussed. The results show that the GBM can effectively simulate the microcracking behavior and tensile fracture properties of heat-treated granite, accounting for mineral composition and thermal expansion. Thermal cracks are mainly intergranular tensile cracks, which increase in number with higher temperatures, while under mechanical loading failure is primarily due to intragranular tensile cracks. Higher heat treatment temperatures lead to denser crack networks with greater fractal complexity, reducing tensile strength and creating more tortuous crack propagation paths.

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Effect of heat treatment on microcracking behaviors and Mode-I fracture characteristics of granite: An experimental and numerical investigation

Cited by 3 publications

References 37 publications

Effect of heat treatment on the shear fracture and acoustic emission properties of granite with thermal storage potential: A laboratory-scale test

Effect of heat treatment on the shear fracture and acoustic emission properties of granite with thermal storage potential: A laboratory-scale test

Experimental study on evaluating fracture processes of different rocks using multiple physical parameters

Effect of Thermal Cracking on the Tensile Strength of Granite: Novel Insights into Numerical Simulation and Fractal Dimension

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