Results 21 to 30 of about 1,115,084 (248)

Fatigue Crack Control in Structural Details using surface peening [PDF]

open access: yes, 2008
This paper presents an analytical and experimental study of crack shape evolution in steel plate specimens under cyclic loading. It is widely known that the introduction of compressive residual stresses by cold working the surface can be highly ...
Shi Song, Ngiam, Brennan, Feargal P.
core   +3 more sources

A fatigue multi-site cracks model using coalescence, short and long crack growth laws, for anodized aluminum alloys [PDF]

open access: yes, 2010
It has been shown that decrease of the fatigue life of aluminium alloys treated with anodization can be explained by the degradation of surface condition due to pickling.
Chaussumier, Michel   +5 more
core   +1 more source

Effect of Notches on Fatigue Crack Initiation and Early Propagation Behaviors of a Ni-Based Superalloy at Elevated Temperatures

open access: yesMetals
The role of notch stress and surface defects on fatigue crack initiation and small-crack propagation behavior has been investigated using groove simulation specimens.
Zuopeng Zhao, Xuteng Hu, Zhiwei Guo
doaj   +1 more source

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

A Framework for Predicting Fatigue Crack Initiation Life in Pipelines with Girth Welds

open access: yesJournal of Marine Science and Engineering
Current studies on fatigue crack initiation in pipelines remain relatively limited. Existing frameworks are confronted with issues including difficulties in crack monitoring and limited consideration of intragranular short-crack propagation.
Jianxing Yu   +3 more
doaj   +1 more source

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

Experimental and theoretical studies of corrosion fatigue in a high strength steel. [PDF]

open access: yes, 1995
The present work consists of both experimental and theoretical aspects of corrosion fatigue in a high strength steel. Fatigue tests were conducted under fully reversed shear loading in an aerated 0.6M NaC1 solution at pH6, for a silico-manganese ...
Wu, Xiao Dong
core   +5 more sources

Fatigue Crack Initiation and Small Crack Propagation Behaviors of Simulated Specimens in a Ni-Based Superalloy

open access: yesMetals
The role of notch geometry and stress levels on fatigue crack initiation and small crack propagation behavior in the FGH96 superalloy was investigated using groove and bolt hole simulated specimens at 500 °C.
Zuopeng Zhao, Xuteng Hu, Zhiwei Guo
doaj   +1 more source

Simulation of fatigue behaviour in fusion welded 2024-T351 [PDF]

open access: yes, 2004
A model has been developed to predict short crack fatigue life in the fusion zone of Metal Inert Gas (MIG) welded 2024-T351, based on the observed propensity for complex, multiple cracking processes in this region.
Lefebvre, F.   +3 more
core   +3 more sources

SIMULATION OF FATIGUE CRACK INITIATION LIFE OF TC4 TITANIUM ALLOY BASED ON ITS MESOSCOPIC PROPERTIES

open access: yesJixie qiangdu, 2021
This paper presents that the prediction model of fatigue crack initiation life of TC4 titanium alloy,and the feasibility of the model in predicting the fatigue crack initiation life of TC4 titanium alloy is verified by experiments.
JIANG Ze   +4 more
doaj  

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