Results 31 to 40 of about 172,289 (277)

Hydraulic fracture propagation in naturally fractured reservoirs: Complex fracture or fracture networks [PDF]

open access: yesJournal of Natural Gas Science and Engineering, 2019
Understanding the behavior of fluid-driven hydraulic fracture in naturally fractured reservoirs is crucial in the development of geothermal energy and unconventional reservoirs. This study presents a fully-coupled numerical model to investigate hydraulic propagation in naturally fractured reservoirs, along with a comprehensive discussion on field ...
openaire   +2 more sources

The Investigation on Initiation and Propagation of Hydraulic Fractures in Shale Reservoir

open access: yesGeofluids, 2021
Hydraulic fracturing is a necessary technique for shale gas exploitation. In order to have efficient stimulation treatment, a complex fracture network has to be developed, whereas with rich bedding planes and natural fractures, the mechanism of forming a
Xiangjun Liu   +5 more
doaj   +1 more source

The effect of elevated temperature exposure on the fracture toughness of solid wood and structural wood composites [PDF]

open access: yes, 2004
This is the author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Springer and can be found at: http://www.springer.com/life+sciences/forestry/journal/226.Fracture toughness of wood and wood ...
H.G. Direen   +4 more
core   +4 more sources

Hybrid phase-field modeling of multi-level concrete gravity dam notched cracks

open access: yesFracture and Structural Integrity, 2022
Phase-field models have become a powerful tool to simulate crack propagation. They regularize the fracture discontinuity and smooth the transition between the intact and the damaged regions. Based on the thermodynamic function and a diffusive field, they
H. Mazighi   +2 more
doaj   +1 more source

Experimental and Numerical Simulation of Interlayer Propagation Path of Vertical Fractures in Shale

open access: yesFrontiers in Energy Research, 2021
The complex fracture network formed by volume fracturing of shale gas reservoir is very important to the effect of reservoir reconstruction. The existence of bedding interface will change the propagation path of the hydraulic fracture in the vertical ...
Dong Xiong   +4 more
doaj   +1 more source

Phase-field modeling and simulation of fracture in brittle materials with strongly anisotropic surface energy [PDF]

open access: yes, 2015
Crack propagation in brittle materials with anisotropic surface energy is important in applications involving single crystals, extruded polymers, or geological and organic materials. Furthermore, when this anisotropy is strong, the phenomenology of crack
Arias Vicente, Irene   +4 more
core   +2 more sources

Linear elastic fracture mechanics predicts the propagation distance of frictional slip [PDF]

open access: yes, 2014
When a frictional interface is subject to a localized shear load, it is often (experimentally) observed that local slip events initiate at the stress concentration and propagate over parts of the interface by arresting naturally before reaching the edge.
Ampuero, Jean-Paul   +3 more
core   +2 more sources

A micromechanical fracture analysis to investigate the effect of healing particles on the overall mechanical response of a self-healing particulate composite [PDF]

open access: yes, 2019
A computational fracture analysis is conducted on a self‐healing particulate composite employing a finite element model of an actual microstructure. The key objective is to quantify the effects of the actual morphology and the fracture properties of the ...
Krishnasamy, J.   +3 more
core   +2 more sources

Low self-affine exponents of fracture surfaces of glass ceramics [PDF]

open access: yes, 2006
The geometry of post mortem rough fracture surfaces of porous glass ceramics made of sintered glass beads is shown experimentally to be self-affine with an exponent zeta=0.40 (0.04) remarkably lower than the 'universal' value zeta=0.8 frequently measured
Auradou, Harold   +3 more
core   +5 more sources

A New Method for Predicting the Crack Propagation Process of Brittle Rock Under Thermo-Hydro-Mechanical Loading Conditions

open access: yesIEEE Access, 2021
Prediction on the crack propagation process of brittle rock under Thermo-Hydro-Mechanical (THM) loading conditions is very important for crack-arrest design and disaster prevention in deep rock engineering.
Wei Yi   +3 more
doaj   +1 more source

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