Results 21 to 30 of about 8,797 (139)

Simulation of Near-Tip Crack Behaviour and Its Correlation to Fatigue Crack Growth with a Modified Strip-Yield Model [PDF]

open access: yes, 2008
A modified strip-yield model has been developed to simulate the plasticity-induced crack closure under the constant amplitude (CA) and a single overload loading conditions.
Chen, Y.K., Tiu, W., Wang, L., Xu, Y.
core   +1 more source

Investigation of plasticity-induced fatigue crack closure [PDF]

open access: yes, 2007
Plasticity induced crack closure and constraint effects due to finite plate thickness are both fundamental aspects in the mechanics of fatigue cracks. Moreover, plasticity induced crack closure provides an effective first-order correction to the crack ...
Codrington, John, Kotousov, Andrei
core   +1 more source

Improved computation method in residual life estimation of structural components [PDF]

open access: yesTheoretical and Applied Mechanics, 2013
This work considers the numerical computation methods and procedures for the fatigue crack growth predicting of cracked notched structural components.
Maksimović Stevan M.   +1 more
doaj   +1 more source

Plasticity induced crack closure in adhesively bonded joints under fatigue loading [PDF]

open access: yes, 2015
The mean load of a cyclic loading has a large effect on fatigue crack growth rates in metallic materials and bonded joints. In metallic structures, this effect has been attributed to plasticity-induced crack closure, but little is known about the ...
Donough, M   +3 more
core   +1 more source

A numerical study of the effect of single overloads on plasticity induced crack closure [PDF]

open access: yes, 2017
In this work, the effect of single overloads on plasticity induced crack closure is studied. An elastic-plastic finite element model was developed and the crack opening level was calculated from the contact forces along the crack flank.
Antunes, F.V.   +3 more
core   +1 more source

Experimental evaluation of CTOD in constant amplitude fatigue crack growth from crack tip displacement fields [PDF]

open access: yesFracture and Structural Integrity, 2017
In the current work an experimental study of the crack tip opening displacement (CTOD) is performed to evaluate the ability of this parameter to characterise fatigue crack growth.
J.M. Vasco-Olmo   +3 more
doaj   +2 more sources

Growth of inclined fatigue cracks using the biaxial CJP model [PDF]

open access: yesFracture and Structural Integrity, 2015
The CJP model of crack tip stresses is a modified version of the Williams crack tip stress field which takes account of simplified stress distributions that arise from the presence of a zone of plastic deformation associated with the crack flanks and ...
G. Laboviciute   +3 more
doaj   +3 more sources

Predicting creep-fatigue crack growth rates in Alloy 709 using finite element simulations of plasticity and creep-induced crack closure

open access: yesMATEC Web of Conferences, 2018
This paper reports on a computational study and experimental validation of creep-fatigue crack growth rates at high temperature in two structural materials.
Ramirez Jose   +6 more
doaj   +1 more source

Can Keff be assumed as the driving force for fatigue crack growth? [PDF]

open access: yesFracture and Structural Integrity, 2015
This work raises some new questions about the validity of blindly assuming that Elber’s effective stress intensity factor is the actual fatigue crack driving force, and that as so it can be used to explain all load sequence effects on fatigue crack ...
J.T.P. Castro   +2 more
doaj   +1 more source

Fatigue crack nucleation and growth in laser powder bed fusion AlSi10Mg under as built and post-treated conditions

open access: yesMaterials & Design, 2021
Numerous efforts have been devoted to produce reliable additive manufactured (AM) materials for structural applications. However, the critical fatigue issue poses a significant hurdle in relation to the nature of this production method.
Juan Guillermo Santos Macías   +5 more
doaj   +1 more source

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