Results 1 to 10 of about 210,758 (203)

Characterizations on fracture process zone of plain concrete

open access: yesJournal of Civil Engineering and Management, 2019
The fracture property of concrete is essential for the safety and durability analysis of concrete structures. Investigating the characteristics of the fracture process zone (FPZ) is of great significance to clarify the nonlinear fracture behaviour of ...
Yuxiang Tang, Hongniao Chen
doaj   +3 more sources

Convergence of fracture process zone size in cohesive zone modeling

open access: yesApplied Mathematical Modelling, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ha, Kyungsu   +2 more
openaire   +4 more sources

Numerical modeling of coupled stress-fracture evolution in water-resisting key strata during longwall mining [PDF]

open access: yesScientific Reports
During underground coal mining, the evolution of stress and fracture development within the overlying water-resisting key strata (WRKS) significantly impacts its water-resisting properties, thereby making it a critical factor controlling the stability of
Huadong Gao   +3 more
doaj   +2 more sources

An Evaluation on Fracture Toughness in SUS304 at High Strain Rate Considering Process Zone [PDF]

open access: yesEPJ Web of Conferences, 2021
Some research works report the relationships between transformation toughening and process zone. In SUS304, the reduction of transformation toughening at high strain rate is expected from the result of a small punch test.
Yoshida Shiguma, Iwamoto Takeshi
doaj   +1 more source

Pilot evaluation of a fracture process zone in a modified compact tension specimen by X-ray tomography [PDF]

open access: yesFracture and Structural Integrity, 2017
In the case of quasi-brittle material, there is a zone of non-linear behaving material, near the crack tip. A major part of this zone forms a socalled fracture process zone (FPZ), where mechanisms of material toughening take place.
J. Klon   +5 more
doaj   +3 more sources

Fracture process zone in granite [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2000
In uniaxial compression tests performed on Aue granite cores (diameter 50 mm, length 100 mm), a steel loading plate was used to induce the formation of a discrete shear fracture. A zone of distributed microcracks surrounds the tip of the propagating fracture. This process zone is imaged by locating acoustic emission events using 12 piezoceramic sensors
Zang, A.   +4 more
openaire   +3 more sources

Combined Finite-Discrete Element Modelling of Dynamic Rock Fracture and Fragmentation during Mining Production Process by Blast

open access: yesShock and Vibration, 2021
A combined finite-discrete element method (FDEM) is proposed to model the dynamic fracture, fragmentation, and resultant muck-piling process during mining production by blast in underground mine.
Huaming An   +3 more
doaj   +1 more source

Analytical solution to longitudinal settlement of segments of subsea shield tunnels in fault fracture zones and its application

open access: yesYantu gongcheng xuebao, 2023
The settlement control of tunnels in fault fracture zones is one of the key problems in the construction of subsea shield tunnels. The differential settlement of the tunnels induces the opening and dislocation of circumferential segment joint, increase ...
FU Yanbin 1, 2, 3, WANG Fudao 1, 2, LU Andian 4, ZHANG Xiaolong 5, HONG Chengyu 1, 3, XIAO Hui 1, 2
doaj   +1 more source

Study on development law of water-conducting fault zone in deep gently inclined double coal seam mining

open access: yesMeikuang Anquan, 2022
In order to study the development characteristics of water-conducting fracture zone in deep-buried gently inclined multi-coal seam mining, taking the overlapping mining area of 2-1 coal and 2-2 coal in Shicaocun Coal Mine as the research object, through
HOU Enke   +5 more
doaj   +1 more source

Experimental Study on the Oil Recovery Performance of CO2 Huff-and-Puff Process in Fractured Tight Oil Reservoirs

open access: yesGeofluids, 2022
In order to investigate energy supply capacity and oil production contribution of near-fracture and fracture-free zone in fractured tight oil reservoirs, a series of CO2 huff-and-puff tests were designed and carried out in different experimental ...
Kun Qian   +4 more
doaj   +1 more source

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