Results 21 to 30 of about 6,843 (265)

The Initiation Characteristics of Corrosion Fatigue Crack in 18Ni (250) Steel

open access: yesJournal of Marine Science and Engineering
Maraging steel is the material of deep sea pressure equipment. The characteristics of corrosion fatigue crack initiation in 18Ni (250) were investigated by performing a tensile fatigue test under different loading conditions.
Hongzhang Pan   +2 more
doaj   +1 more source

Rotational bending fatigue life and fatigue crack initiation mechanism of Cr4Mo4V bearing steel

open access: yesCailiao gongcheng, 2019
The rotational bending fatigue life and fatigue crack initiation mechanism of Cr4Mo4V bearing steel were studied by means of rotating bending fatigue test at room temperature.
GUO Jun   +3 more
doaj   +1 more source

A Comparison of Two Methods Modeling High-Temperature Fatigue Crack Initiation in Ferrite–Pearlite Steel

open access: yesCrystals, 2022
High-temperature fatigue tests are carried out to investigate the fatigue crack initiation behavior of ferrite–pearlite steel. Two approaches to modeling fatigue crack initiation under high temperatures in ferrite–pearlite steel are developed and ...
Zheng Fang, Lu Wang, Zheng Wang, Ying He
doaj   +1 more source

Prominent Movement Disorders in RNU2‐2‐Related Spliceosomopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Pediatric movement disorders often overlap with neurodevelopmental diseases, suggesting shared molecular mechanisms. Variants in small nuclear RNA (snRNA) genes encoding spliceosome components have recently been associated with neurodevelopmental disorders, termed “RNUopathies.” We analyzed genome sequencing data from 14 patients with ...
Magdalena Krygier   +6 more
wiley   +1 more source

On the initiation of fretting fatigue cracks

open access: yesWear, 1997
This paper discusses macroscopic and microscopic approaches for prediction of the initiation of fretting fatigue cracks. A novel series of fretting fatigue tests is described, involving the cycling of fretting force and specimen load at different frequencies.
Fellows, L, Nowell, D, Hills, D
openaire   +2 more sources

Digital Cognitive Phenotyping for Differential Diagnosis and Monitoring in Neurological Conditions

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the utility, accessibility, and equivalence to supervised scales of online cognitive assessment in older individuals with cognitive impairment. Methods Patients with Alzheimer's disease (AD, n = 31), idiopathic normal pressure hydrocephalus (iNPH, n = 26), and traumatic brain injury (TBI, n = 23) completed online cognitive ...
Martina Del Giovane   +10 more
wiley   +1 more source

Initiation of internal fatigue crack in a carbide-free bainitic steel during high cycle fatigue

open access: yesJournal of Materials Research and Technology
The crack initiation stage is crucial to the overall fatigue behavior of the carbide-free bainitic steels. Through S–N curve testing and fracture observation, it is demonstrated that internal crack initiation is the dominant mode during high cycle ...
Bo Mi   +5 more
doaj   +1 more source

Mechanisms of fatigue-crack initiation and their impact on fatigue life of AlSi7 die-cast components

open access: yesMATEC Web of Conferences, 2014
In the course of the present study, in-situ observations of crack initiation and crack growth of naturally induced cracks in cyclically loaded specimens along with conventional fatigue tests and fracture surface analyses were performed.
Redik Sabine   +2 more
doaj   +1 more source

Crack Initiation and Propagation Fatigue Life of Ultra High-Strength Steel Butt Joints

open access: yesApplied Sciences, 2019
The division of the total fatigue life into different stages such as crack initiation and propagation is an important issue in regard to an improved fatigue assessment especially for high-strength welded joints.
Markus J. Ottersböck   +3 more
doaj   +1 more source

Performance Evaluation of a Carbon Nanotube Sensor for Fatigue Crack Monitoring of Metal Structures

open access: yesSensors, 2020
This article describes research that investigated the ability of a carbon nanotube (CNT) sensor to detect and monitor fatigue crack initiation and propagation in metal structures.
Shafique Ahmed   +3 more
doaj   +1 more source

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