Results 21 to 30 of about 69,126 (307)

Crack growth behaviour of aluminium wrought alloys in the Very High Cycle Fatigue regime [PDF]

open access: yesMATEC Web of Conferences, 2018
Investigations have shown that in the regime of Very High Cycle Fatigue (VHCF) “natural” crack initiation often takes place underneath the material surface leading to crack propagation without contact to atmospheric components.
Bülbül Fatih   +5 more
doaj   +2 more sources

Modelling probabilistic fatigue crack propagation rates for a mild structural steel [PDF]

open access: yesFracture and Structural Integrity, 2015
A class of fatigue crack growth models based on elastic–plastic stress–strain histories at the crack tip region and local strain-life damage models have been proposed in literature.
J.A.F.O. Correia   +3 more
doaj   +1 more source

Bending fatigue crack propagation behavior of U75V heavy rail steel

open access: yesCailiao gongcheng, 2023
In order to clarify the fatigue crack propagation behavior of pearlitic rail, the three-point bending fatigue crack propagation rate of U75V heavy rail steel in rolling state and heat treatment state was measured.
CEN Yaodong   +4 more
doaj   +1 more source

Fatigue crack growth in thin notched woven glass composites under tensile loading. Part II: modelling [PDF]

open access: yes, 2011
Fatigue propagation of a through-the-thickness crack in thin woven glass laminates is difficult to model when using homogeneous material assumption. Crack growth depends on both the fatigue behaviour of the fibres and of the matrix, these two phenomena ...
Barrau, Jean-Jacques   +3 more
core   +3 more sources

Effects of oxygen-related damage on dwell-fatigue crack propagation in a P/M Ni-based superalloy : from 2D to 3D assessment [PDF]

open access: yes, 2017
Effects of oxygen-related damage (i.e. oxidation and dynamic embrittlement) on fatigue crack propagation behavior in an advanced disc alloy have been assessed in air and vacuum under dwell-fatigue conditions at 725 oC.
Bull, D. J.   +4 more
core   +1 more source

Acoustic emission study of fatigue crack propagation in Q345R

open access: yes工程科学学报, 2015
The acoustic emission signals of fatigue crack propagation in Q345R,which is the typical representative of common steel for pressure vessels,were investigated in detail to construct a relationship between fatigue and acoustic emission.
CHAI Meng-yu, DUAN Quan, ZHANG Zao-xiao
doaj   +1 more source

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

Evaluation of fatigue crack propagation in surface modification layer of duralumin treated by various peening

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Peening techniques are used to introduce the compressive residual stress into the surface of metallic materials in order to improve the fatigue properties.
Tomoyuki KOKUBUN, Hitoshi SOYAMA
doaj   +1 more source

Effects of surface oxide layer on fatigue crack propagation properties of submicrometer-thick copper films

open access: yesNihon Kikai Gakkai ronbunshu
Fatigue failure involves fatigue crack initiation and propagation processes. In bulk metals, the fatigue crack initiation process is strongly affected by a dissimilar surface layer, while the fatigue crack propagation process is less affected.
Toshiyuki KONDO   +3 more
doaj   +1 more source

Suppression of Fatigue Crack Propagation of Duralumin by Cavitation Peening

open access: yesThe Journal of Engineering, 2015
It was demonstrated in the present paper that cavitation peening which is one of the mechanical surface modification technique can suppress fatigue crack propagation in duralumin.
Hitoshi Soyama   +3 more
doaj   +1 more source

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