Effect of Brittle Mineral Size on Hydraulic Fracture Propagation in Shale Gas Reservoir
The properties of brittle minerals have great effect on the morphology of postfracturing network in shale reservoirs in the southeastern Ordos Basin, China.
Wei Gao +4 more
doaj +1 more source
Fracture toughness (KIC) and tensile strength (ft) are two important parameters for describing the fracture performance of quasi-brittle materials. The accurate determination of both parameters is crucial for the safety design and stability evaluation of
Junfeng Guan, Yue Ma, Chaopeng Xie
doaj +1 more source
Existence of solutions to a regularized model of dynamic fracture [PDF]
Existence and convergence results are proved for a regularized model of dynamic brittle fracture based on the Ambrosio–Tortorelli approximation. We show that the sequence of solutions to the time-discrete elastodynamics, proposed by Bourdin, Larsen ...
Larsen, CJ +8 more
core +1 more source
Fracture morphology and its evolution A review on crack path stability and brittle fracture along butt-weld [PDF]
Considerations are made for the fracture morphology and its evolution in relation to the brittle fracture along butt-weld, where crack path stability may play important roles in various aspects. Analyses of a kinked and curved crack are first reviewed in
Y. Sumi
doaj +2 more sources
Brittle Fracture of Dental Amalgam [PDF]
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/67331/2/10.1177_00220345650440053801 ...
Asgar, Kamal, Sutfin, Lloyd V.
openaire +3 more sources
Multiscale modelling of materials chemomechanics : brittle fracture of oxides and semiconductors [PDF]
Fracture is one of the most challenging ‘multi-scale’ problems to model: since crack propagation is driven by the concentration of a long-range stress field at an atomically sharp crack tip, an accurate description of the chemical processes occurring in ...
De Vita, Alessandro +4 more
core +1 more source
Effects of High Toughness and Welding Residual Stress for Unstable Fracture Prevention
Unstable fractures generally occur in brittle materials under low-temperature service conditions. Toughness and welding residual stress are the main factors that should be evaluated when defining a brittle crack propagation path. In this study, a rainbow
Gyubaek An, Jeongung Park, Ilwook Han
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Investigation on the Applicability of Several Fracture Criteria to the Mixed Mode Brittle Fractures
Mixed mode brittle fractures are very common failure behavior for cracked brittle materials under loading, and therefore, the prediction of the mixed mode brittle fractures is significant.
Li Ren +3 more
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Fracture mechanics of micro samples: Fundamental considerations
In this review article we consider the crack growth resistance of micrometer and sub-micrometer sized samples from the fracture mechanics point of view. Standard fracture mechanics test procedures were developed for macro-scale samples, and reduction of ...
R. Pippan, S. Wurster, D. Kiener
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Using the discrete element method to simulate brittle fracture in the indentation of a silica glass with a blunt indenter [PDF]
This work was supported by the Conseil Régional d’Aquitaine and was conducted under the auspices of the Etude et Formation en Surfacage Optique (EFESO 2) project.
CHARLES, Jean-Luc +5 more
core +1 more source

