Results 21 to 30 of about 58,593 (304)

Fatigue crack growth in notched specimens: a numerical analysis

open access: yesFracture and Structural Integrity, 2019
Fatigue crack growth (FCG) is linked to irreversible and non-linear processes happening at the crack tip, which explains different problems observed in the use of da/dN-?K curves. The replacement of ?K by non-linear crack tip parameters, namely the crack
F.V. Antunes   +3 more
doaj   +3 more sources

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

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

Study on the Influence of the Gurson–Tvergaard–Needleman Damage Model on the Fatigue Crack Growth Rate

open access: yesMetals, 2021
The fatigue crack growth (FCG) process is usually accessed through the stress intensity factor range, ΔK, which has some limitations. The cumulative plastic strain at the crack tip has provided results in good agreement with the experimental observations.
Edmundo R. Sérgio   +3 more
doaj   +1 more source

Predicting fatigue crack growth rate in a welded butt joint: The role of effective R ratio in accounting for residual stress effect [PDF]

open access: yes, 2009
A simple and efficient method is presented in this paper for predicting fatigue crack growth rate in welded butt joints. Three well-known empirical crack growth laws are employed using the material constants that were obtained from the base material ...
Servetti, Guido, Zhang, X.
core   +1 more source

Effects of crack closure and friction for linear crack under normal impact [PDF]

open access: yesEngineering Analysis with Boundary Elements, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Menshykov, Oleksandr   +2 more
openaire   +3 more sources

Near-threshold fatigue propagation of physically through-thickness short and long cracks in a low alloy steel [PDF]

open access: yes, 2014
International audienceIn this paper, the near-threshold fatigue behavior of physically through-thickness short cracks and of long cracks in a low alloy steel is investigated by experiments in ambient air. Physically through-thickness short fatigue cracks
Chretien, Gaëlle   +5 more
core   +3 more sources

Simulation of crack closure effect on cracked beam vibrations

open access: yesEngineering Fracture Mechanics
Vibrations of beams containing cracks are usually investigated by using open or breathing crack models. Neither one of these approaches considers the plasticity induced crack closure (PICC) phenomena which occurs in fatigue crack growth. In this study, PICC is integrated into the vibration analysis of a cracked beam.
Dağhan Günhan   +2 more
openaire   +2 more sources

Experimental and Numerical Study on Crack Propagation of Cracked Plates under Low Cycle Fatigue Loads

open access: yesJournal of Marine Science and Engineering, 2023
The traditional study on fatigue strength for ship structures usually focuses on high cycle fatigue and ignores low cycle fatigue. However, given the recent trend towards large-scale ship development, the stress and deformation experienced by ship ...
Dong Qin, Xu Geng, Zhao Jie, Hu Yaoyu
doaj   +1 more source

A modified crack closure integral method for calculating stress intensity factors for cracked plates subject to bending loads [PDF]

open access: yes, 1989
A method is developed to calculate strain energy release rates, G, or stress intensity factors, K, using only nodal forces and displacements from a standard finite element analysis code.
Lakshminarayana, HV   +2 more
core   +1 more source

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