Results 21 to 30 of about 493 (138)

A parameter for quantitative analysis of plasticity induced crack closure [PDF]

open access: yesInternational Journal of Fatigue, 2015
Abstract Numerical models have been successfully developed to predict plasticity induced crack closure (PICC). However, despite the large research effort a full understanding of the links between physical parameters, residual plastic wake and PICC has not been achieved yet.
Antunes, F.V.   +2 more
openaire   +3 more sources

Novel Characterizations of Effective SIFs and Fatigue Crack Propagation Rate of Welded Rail Steel Using DIC

open access: yesMetals, 2023
The fatigue crack growth-rate test of rail head, waist, and bottom material for U71Mn welded rail was carried out. Digital image correlation (DIC) was used to capture the full-field displacement.
Xiu-Yang Fang   +4 more
doaj   +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

An analytical model of plasticity induced crack closure

open access: yesProcedia Engineering, 2010
AbstractAccurate and non-conservative measurements of fatigue crack growth rate are essential when designing efficient structures to be subjected to cyclic loading. Crack closure is a main mechanism of fatigue crack propagation and must be included.
Antunes, F.V.   +2 more
openaire   +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   +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

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   +2 more sources

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

Analysis of Plasticity-induced Crack Closure of Fatigue Crack Interacting with Microstructure.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 2000
The propagation behavior of small fatigue cracks was numerically simulated to evaluate the development of crack closure with crack growth. The effect of the interaction between crack-tip slip band and grain boundaries on plasticity-induced crack closure was analyzed under plane stress condition.
AKINIWA, Yoshiaki   +2 more
openaire   +2 more sources

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