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Linear Elastic Fracture Mechanics Characterization of an Anisotropic Shale. [PDF]

open access: yesSci Rep, 2018
AbstractThe existence of bedding planes in natural shale formations makes the fracture characterization remarkably complicated. To achieve a further understanding of the anisotropic crack extension behaviors of shale using a linear elastic fracture mechanics approach, four groups of three-point bending tests on Longmaxi shale from southeast Chongqing ...
Luo Y   +5 more
europepmc   +4 more sources

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

Experimental and Theoretical Fatigue Crack Propagation in Vitro of the Bovine and Human cortical Bone in Linear Elastic and Elastic-Plastic Fracture Mechanics [PDF]

open access: yesEngineering and Technology Journal, 2017
This study involved studying fatigue crack propagation in elastic-plastic and linear elastic fracture mechanics LEFM fracture mechanics EPFM for each bovine and cadaveric human cortical bone.
B.O. Bdaiwi, A.F. Abdul-kareem
doaj   +1 more source

Constraint-corrected fracture mechanics analysis of nozzle crotch corners in pressurized water reactors

open access: yesNuclear Engineering and Technology, 2022
This paper presents fracture mechanics analysis results for various cracks located at pressurized water reactor pressure vessel nozzle crotch corners taking into consideration constraint effect. Technical documents such as the ASME B&PV Code, Sec.XI were
Jong-Sung Kim   +5 more
doaj   +1 more source

Basal hydrofractures near sticky patches

open access: yesJournal of Glaciology, 2023
Basal crevasses are macroscopic structural discontinuities at the base of ice sheets and glaciers that arise by fracture. Motivated by observations and by the mechanics of elastic fracture, we hypothesise that spatial variations in basal stress (in the ...
Hanwen Zhang   +4 more
doaj   +1 more source

Singular patch method for linear elastic fracture mechanics analysis using isogeometric analysis

open access: yesMechanical Engineering Journal, 2022
The singular patch method for isogeometric analysis (IGA) to represent the singular stress behavior in the vicinity of a crack tip for two-dimensional linear elastic fracture mechanics analysis is presented.
Hiroshi OKADA   +6 more
doaj   +1 more source

Experimental conditions affecting the measured fracture toughness at the microscale: Notch geometry and crack extension measurement

open access: yesMaterials & Design, 2020
Experimental fracture mechanics at the microscale became an indispensable tool for understanding and developing advanced material systems. In case of linear elastic fracture mechanics, stringent requirements are typically only warranted for very brittle ...
Ashish Kumar Saxena   +4 more
doaj   +1 more source

Elastic fracture toughness for ductile metal pipes with circumferential surface cracks [PDF]

open access: yes, 2017
Surface cracks have long been recognized as a major cause for potential failures of metal pipes. In fracture analysis, the widely used method is based on linear elastic fracture mechanics.
Fu, Guoyang   +2 more
core   +1 more source

Mode I Fracture Toughness of Graphene Reinforced Nanocomposite Film on Al Substrate

open access: yesNanomaterials, 2021
Nanocomposites were prepared by adding graphene nanoplatelets (GNP) into epoxy with a variety of loadings. The thickness of GNPs used in this study was in a range of 1 nm to 10 nm.
Shiuh-Chuan Her, Kai-Chun Zhang
doaj   +1 more source

Thermal fracture characteristics of an interface crack subjected to temperature variations

open access: yesProduction Engineering Archives, 2020
Thermal fracture characteristics – the thermal energy release rate and thermal stress intensity factor of a semi-infinite crack at an interface between the two elastic isotropic materials, subjected to the temperature variations, are considered in this ...
Kalinović Saša M.   +3 more
doaj   +1 more source

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