Results 1 to 10 of about 23,505 (308)

Numerical simulation and experimental verification of fatigue crack propagation in high-strength bolts based on fracture mechanics [PDF]

open access: yesScience Progress, 2023
To investigate the fatigue crack propagation behavior of high-strength bolts for high-speed train brake discs, the fatigue crack propagation of high-strength bolts with initial defects under various load ratios was numerically simulated and ...
Ping Zhang   +3 more
doaj   +2 more sources

Effect of low temperature on fatigue crack propagation rates of DH36 steel and its butt weld

open access: yesOcean Engineering, 2020
As common marine steel for polar ships, the fatigue crack propagation rates of DH36 steel at low temperature have a crucial influence on the evaluation of the fatigue strength of polar ships.
Weidong Zhao   +2 more
exaly   +2 more sources

Effect of crystallographic orientation and geometrical compatibility on fatigue crack initiation and propagation in rolled Ti-6Al-4V alloy

open access: yesActa Materialia, 2019
Fatigue crack initiation and short crack propagation was systematically investigated in a rolled α / β Ti-6Al-4V alloy through a combination of in situ optical microscopy observations during fully-reversed uniaxial fatigue experiments and post-mortem ...
Fabien Briffod   +2 more
exaly   +2 more sources

Effect of grain structure on fatigue crack propagation behavior of 2024 aluminum alloy under different stress ratios

open access: yesMaterials & Design
The fatigue load that a material experiences and its microstructure are important factors influencing fatigue crack propagation behavior. This study employed laser scanning microscopy and electron backscatter diffraction (EBSD) technology, along with ...
Hongtao Chen   +5 more
doaj   +3 more sources

Effect of microstructure on small fatigue crack initiation and early propagation behavior in Mg-10Gd-3Y-0.3Zr alloy

open access: yesInternational Journal of Fatigue, 2019
Microstructural cyclic deformation mechanisms and their relation to small fatigue crack initiation and early propagation behavior were experimentally investigated in a rare earth-containing magnesium alloy (Mg-Gd-Y-Zr).
Yujuan Wu, Liming Peng, Ning Su
exaly   +2 more sources

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

open access: yesInternational Journal of Fatigue, 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 °C.
Rong Jiang, D J Bull, P A S Reed
exaly   +2 more sources

The influence of crack tip shielding on fatigue crack propagation [PDF]

open access: yesFracture and Structural Integrity, 2017
The fatigue crack propagation is one of the major problems and of the real concern in the evaluation of the structural integrity of components. This is due to the fact that once a fatigue crack has been detected it is also known its effect on the ...
Anghel Cernescu
doaj   +3 more sources

Three-dimensional fatigue crack propagation simulation using extended finite element methods for steel grades S355 and S690 considering mean stress effects

open access: yesEngineering structures, 2021
The assessment of fatigue crack propagation of steel structures is essential and important especially to improve the application of high strength steel in construction.
H. Xin, J. Correia, M. Veljković
semanticscholar   +1 more source

Fatigue crack propagation of aeronautic AA7050-T7451 and AA2050-T84 aluminum alloys in air and saline environments

open access: yesInternational Journal of Fatigue, 2022
AA7050-T7451 aluminum alloy is one of the most used material in aeronautical applications due to its high strength/density ratio and good fatigue resistance.
T. Cavalcante   +5 more
semanticscholar   +1 more source

Effects of residual stresses on fatigue crack propagation of an orthotropic steel bridge deck

open access: yesMaterials & Design (1980-2015), 2021
Orthotropic steel decks (OSD's) are susceptible to fatigue failure due to cyclic loading. Often fatigue cracks are found in the joint between the deck plate and the trough. Due to the welding process, residual stresses are present in and around the joint.
N. Berg, H. Xin, M. Veljković
semanticscholar   +1 more source

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