Investigating the effect of confining pressure on fracture toughness of CO2-saturated coals
Abstract
The present paper investigates the effects of CO2-saturation and confining pressures on the fracture toughness of bituminous coals. Three-point bending experiments were performed with semi-circular coal specimens (SCB) after they were immersed in different CO2 pressures. The experimental results show that the pure modes I and II fracture toughnesses of coal samples gradually decrease with the growth of CO2-saturation pressure. Additionally, the...
Paper Details
Title
Investigating the effect of confining pressure on fracture toughness of CO2-saturated coals
Published Date
Feb 1, 2021
Volume
242
Pages
107496 - 107496
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