Results 21 to 30 of about 3,454,166 (281)

A predictive fatigue life model for anodized 7050 aluminium alloy [PDF]

open access: yes, 2013
The objective of this study is to predict fatigue life of anodized 7050 aluminum alloy specimens. In the case of anodized 7050-T7451 alloy, fractographic observations of fatigue tested specimens showed that pickling pits were the predominant sites for ...
Chaussumier, Michel   +4 more
core   +1 more source

Investigation of the Damage Mechanisms Influencing the Short Crack Behavior of Inconel 625 Under Variable Amplitude Fatigue Loading

open access: yesAerospace
Variable amplitude fatigue loading can result in both accelerated and decelerated fatigue damage due to load interaction effects. Short fatigue cracks in particular exhibit a wide range of crack growth behavior due to multiple damage mechanisms ...
Robert Fleishel   +2 more
doaj   +1 more source

Development of a fretting-fatigue mapping concept: The effect of material properties and surface treatments [PDF]

open access: yes, 2009
Fretting-fatigue induced by combined localized cyclic contact motion and external bulk fatigue loadings may result in premature and dramatic failure of the contacting components.
Kubiak, K   +3 more
core   +1 more source

Characterization of Physical Short Crack Growth at the Meso-scale Based on Magnetic Property Parameters

open access: yes工程科学与技术, 2023
In the mesoscale, the proportion of the physical short crack stage in the whole fatigue life is usually high. And the expansion rate of the physical short crack is faster than that of the long crack.
Haiyan XING   +5 more
doaj  

Research on the Behavior and Mechanism of Three-Dimensional Crack Growth under Uniaxial Loading

open access: yesAdvances in Materials Science and Engineering, 2021
Most of the cracks in the rock masses are in a three-dimensional (3D) state, and it is always a hot topic to reveal the mechanical mechanism of 3D crack growth.
Zhibo Zhang, Shujie Li, Xuanye Qin
doaj   +1 more source

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

open access: yes, 2011
Helicopter blades are made of composite materials mainly loaded in fatigue and have normally relatively thin skins. A through-the-thickness crack could appear in these skins.
Barrau, Jean-Jacques   +7 more
core   +1 more source

Short crack initiation and growth at 600 °C in notched specimens of Inconel718

open access: yes, 2003
The natural initiation and growth of short cracks in Inconel®718 U-notch specimens has been studied at 600 °C in air. U notches were introduced through broaching, and hardness traces and optical microscopy on cross-sections through the U notch broaching ...
Connolley, T.   +2 more
core   +1 more source

Influence of woven ply degradation on fatigue crack growth in thin notched composites under tensile loading [PDF]

open access: yes, 2010
This paper deals with the fatigue of the through the-thickness crack propagation in thin notched composite laminates made of two glass woven plies. It highlights the different crack growths between warp and weft directions of the woven ply.
Barrau, Jean-Jacques   +3 more
core   +1 more source

LIFE SIMULATION OF MICROSCOPIC SHORT CRACK NUCLEATION AND EARLY PROPAGATION OF WELD TOE

open access: yesJixie qiangdu, 2021
For cross welded joints, the behavior of microscopic short crack nucleation and early propagation of the weld toe was studied. Using the Voronoi method, a representative element(RE) with a side length of 150μm at the weld toe was established.
CHENG LiFu   +3 more
doaj  

On the transition of short cracks into long fatigue cracks in reactor pressure vessel steels

open access: yesMATEC Web of Conferences, 2018
Short fatigue cracks, having dimension less than 1 mm, propagate at much faster rates (da/dN) even at lower stress intensity factor range (da/dN) as compared to the threshold stress intensity factor range obtained from long fatigue crack growth studies ...
Singh Rajwinder   +4 more
doaj   +1 more source

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