Results 21 to 30 of about 57,383 (312)

Forecast of the fatigue crack initiation site of commercially pure Titanium miniature specimens with local surface topography data [PDF]

open access: yesMATEC Web of Conferences, 2020
Surfaces of technical components rarely appear in perfectly smooth condition. During fatigue loading, stress concentrations at surface asperities cause localized plastic deformation that can lead to crack initiation.
Böhme L.   +4 more
doaj   +1 more source

Effect of high temperature on crack initiation of super austenitic stainless steel 654SMO in very high cycle fatigue

open access: yesMaterials & Design, 2020
Working service of structural materials at elevated temperatures generally leads to a significant decrease in their fatigue performance, thereby threatening the safety and reliability of engineering structures.
Xue Li   +8 more
doaj   +1 more source

Near-threshold fatigue crack growth in bulk metallic glass composites [PDF]

open access: yes, 2009
A major drawback in using bulk metallic glasses (BMGs) as structural materials is their extremely poor fatigue performance. One way to alleviate this problem is through the composite route, in which second phases are introduced into the glass to arrest ...
Boopathy, Kombaiah   +3 more
core   +1 more source

Low cycle fatigue damage model and sensitivity analysis of fatigue crack initiation by finite element approach

open access: yesFracture and Structural Integrity, 2020
To meet the design requirements, different types of defects are often machined on the surface of fatigue components. Local stress concentration formed at the notch accelerates the initiation of fatigue crack, therefore greatly shortens the service lives ...
Zhi-qiang Wang   +2 more
doaj   +1 more source

Early slip activity and fatigue crack initiation of a near alpha titanium alloy [PDF]

open access: yesMATEC Web of Conferences, 2020
For titanium alloys, crack initiation as a result of plastic strain accumulation has been shown to govern fatigue life under the high cycle fatigue regime.
Liu Conghui   +3 more
doaj   +1 more source

A fatigue crack initiation model incorporating discrete dislocation plasticity and surface roughness [PDF]

open access: yes, 2007
Although a thorough understanding of fatigue crack initiation is lacking, experiments have shown that the evolution of distinct dislocation distributions and surface roughness are key ingredients.
Brinckmann, Steffen   +1 more
core   +4 more sources

Fatigue crack initiation and propagation of 100Cr6 steel under torsional loading in very high cycle regime

open access: yesMATEC Web of Conferences, 2018
Cyclic torsional fatigue properties of a high strength steel 100Cr6 are investigated using an ultrasonic torsional fatigue testing machine, and the results are compared with those obtained with fatigue tests under axial loading.
Xue Hongqian   +3 more
doaj   +1 more source

Advances on creep–fatigue damage assessment in notched components [PDF]

open access: yes, 2017
In this paper, the extended Direct Steady Cyclic Analysis method (eDSCA) within the Linear Matching Method Framework (LMMF) is combined with the Stress Modified Ductility Exhaustion method and the modified Cavity Growth Factor (CGF) for the first time ...
Barbera, D., Chen, H., Liu, Y.
core   +2 more sources

EXPERIMENT AND SIMULATION RESEARCH ON UNIFORM SUPERCHARGED FATIGUE CRACK INITIATION OF AIRCRAFT FUSELAGE SKIN

open access: yesJixie qiangdu, 2020
The fatigue crack initiation of the fuselage structure skin under the uniform supercharged cyclic load of 0 ~ 7. 8 Psi was experimentally studied by the self-made aircraft fuselage skin uniform supercharged fatigue simulation device.
LIU LiPing   +5 more
doaj  

Research on evolution behavior of 42CrMo microscopic fatigue short crack based on microstructure effect of material

open access: yesAdvances in Mechanical Engineering, 2022
To investigate the causes of damage dispersion in fatigue life of alloy materials, fatigue tests on 42CrMo are carried out under microscope with the aid of a micro fatigue testing device.
Nan Xu   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy