Results 21 to 30 of about 16,452 (299)

A new chart of hydraulic fracture height prediction based on fluid–solid coupling equations and rock fracture mechanics [PDF]

open access: yesRoyal Society Open Science, 2018
The conventional method to predict hydraulic fracture height depends on linear elastic mechanics, and the typical Gulrajani–Nolte chart fails to reflect fracture height when the net pressure in the fracture is too high.
Xiaoqiang Liu   +5 more
doaj   +1 more source

Experimental and Numerical Investigation of Rock Dynamic Fracture [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2017
Rapid development of engineering activities expands through a variety of rock engineering processes such as drilling, blasting, mining and mineral processing.
Aliasghar Mirmohammadlou   +3 more
doaj   +1 more source

FINITE ELEMENT ANALYSIS OF FRACTURE MECHANICS OF WHEEL-RAIL [PDF]

open access: yesمجله مدل سازی در مهندسی, 2011
In this paper, wheel-rail contact problem in the presence of rail surface crack is investigated. The reason for investigating this problem is significant effect of wheel-rail contact on stress intensity factors.
یوسف Ahmadi Broughani   +1 more
doaj   +1 more source

Numerical modeling of thermally-induced fractures in a large rock salt mass

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2018
Numerical modeling of thermally-induced fractures is a concern for many geo-structures including deep underground energy storage caverns. In this paper, we present the numerical simulation of a large-scale cooling experiment performed in an underground ...
D.T. Ngo, F.L. Pellet
doaj   +1 more source

Comparison of the constraint parameters in elastic-plastic fracture mechanics Focused on Crack Tip Fields

open access: yesFracture and Structural Integrity, 2019
To describe the effect of crack-tip constraint on the stress field for finite cracked bodies, the following most widely used constraint parameters can be employed in elastic-plastic fracture mechanics, namely, local triaxiality parameter, constraint ...
Yu. G. Matvienko
doaj   +1 more source

Effects of Different Numerical Methods on the Fracture Prediction Accuracy for Cortical Bone Structure under Bending Load

open access: yesApplied Sciences, 2023
Three numerical methods, including element instantaneous failure, continuum damage mechanics, and extended finite element methods, are mainly used to simulate the fracture in cortical bone structure.
Ruoxun Fan, Jie Liu, Zhengbin Jia
doaj   +1 more source

The analysis of bearing capacity of main pipeline in presence of corrosion defects [PDF]

open access: yesОмский научный вестник, 2019
A mathematical model is presented that allows modeling fatigue defects of corrosion origin on main pipelines. A method for assessing the crack resistance of the main pipeline wall with a corrosion defect is proposed.
К. А. Vansovich   +3 more
doaj   +1 more source

Investigation of continuum damage mechanics model without element size sensitivity

open access: yesNihon Kikai Gakkai ronbunshu, 2017
A discontinuous material behavior such as ductile fracture and fatigue failure is predicted actively in various fields by FEM. There is continuum damage mechanics as a method to evaluate the discontinuous material behavior in a framework of continuum ...
Satoshi HIROSE, Yutaka TOI
doaj   +1 more source

Crack propagation modeling of strengthening reinforced concrete deep beams with CFRP plates

open access: yesMaterials Research Express, 2021
Fracture analysis of reinforced concrete deep beam strengthened with carbon fiber-reinforced polymer (CFRP) plates was carried out. The present research aimed to discover whether crack propagation in a strengthened deep beam follows linear elastic ...
Shahriar Shahbazpanahi   +4 more
doaj   +1 more source

From finite to linear elastic fracture mechanics by scaling [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2013
The authors describe the asymptotic behaviour of the propagation of a crack in a 2D brittle material. Let \(\Omega \) be a bounded, open and connected domain in \(\mathbb{R}^{2}\) whose Lipschitz boundary \(\partial \Omega \) may be decomposed as the disjoint union \(\partial _{D}(\Omega )\cup \partial _{N}(\Omega )\), with positive Hausdorff measure \(
M. Negri, ZANINI, CHIARA
openaire   +2 more sources

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