Results 1 to 10 of about 22,962,330 (351)

An extended J-integral for evaluating fluid-driven cracks in hydraulic fracturing

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2018
J-integral has served as a powerful tool in characterizing crack tip status. The main feature, i.e. path-independence, makes it one of the foremost fracture parameters.
Huifang Song, Sheik S. Rahman
doaj   +2 more sources

Generalized J-integral – mathematical foundation

open access: yesBoundary Value Problems
This article describes the mathematics for building the foundations of the theory of the Generalized J-integral (GJ-integral) in various variational problems defined on D that gives the shape derivative on singular points such as boundaries, cracks ...
Kohji Ohtsuka
doaj   +3 more sources

Analisis J-integral Dengan Adventure System

open access: yesJurnal Energi Dan Manufaktur, 2015
Abstrak : ADVENTURE (ADVanced ENgineering analysis Tools for Ulra large Real world) adalah proyekambisius Jepang yang menggunakan "komputer tercepat di dunia 30-100 TFLOPS pada tahun2002", tapi juga digunakan untuk analisis GeoFEM yang dirancang untuk ...
Irsyadi Yani
doaj   +1 more source

An enhanced J‐integral for hydraulic fracture mechanics

open access: yesInternational journal for numerical and analytical methods in geomechanics (Print), 2022
This article revisits the formulation of the J‐integral in the context of hydraulic fracture mechanics. We demonstrate that the use of the classical J‐integral in finite element models overestimates the length of hydraulic fractures in the viscosity ...
E. Pezzulli   +4 more
semanticscholar   +1 more source

Effect of local plastic component on crack opening displacement and on J-integral of a circumferential penetrated crack

open access: yesMechanical Engineering Journal, 2020
This paper describes the effect of local plastic component on J-integral and crack opening displacement (COD) evaluation of a circumferential penetrated crack, applicable to the leak before break (LBB) assessment for sodium cooled fast reactor (SFR ...
Hideo MACHIDA   +2 more
doaj   +1 more source

A DIC method to determine the Mode I energy release rate G, the J-integral and the traction-separation law simultaneously for adhesive joints

open access: yes, 2020
The quasi-static Mode I fracture behaviour of joints bonded with either a brittle or toughened epoxy adhesive or a ductile polyurethane adhesive has been investigated by means of digital image correlation (DIC). A novel method to measure the crack length
F. Sun, B. Blackman
semanticscholar   +1 more source

Modeling Crack Propagation in Bituminous Binders under a Rotational Shear Fatigue Load using Pseudo J-Integral Paris’ Law

open access: yes, 2020
Fatigue resistance of bituminous binders plays a critical role in determining the fatigue performance of asphalt pavements. It is reported in the literature that, under a rotational shear fatigue load like a dynamic shear rheometer (DSR) test, the crack ...
Yangming Gao, Linglin Li, Yuqing Zhang
semanticscholar   +1 more source

Elastic-plastic fracture analysis of anisotropy effect on AA2050-T84 alloy at different temperatures: a numerical study

open access: yesFracture and Structural Integrity, 2022
The third generation Al-Li alloy AA2050-T84 is widely used in aircraft applications due to its lightweight and significant mechanical properties. The anisotropic variations of tensile and compression properties of this alloy at various temperatures are ...
Nagaraj Ekabote   +2 more
doaj   +1 more source

A new three-dimensional J-integral formulation for arbitrary load history and finite deformation

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In this paper, a new formulation of three-dimensional J-integral for the evaluation of elastic-plastic fracture problem is presented. It is known that the J-integral represents the energy release rate per unit crack extension.
Koichiro ARAI   +2 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

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