Results 61 to 70 of about 14,338 (208)

Validation and Veri cation of the Acoustic Emission Technique for Structural Health Monitoring [PDF]

open access: yes, 2013
The performance of the Acoustic Emission (AE) technique was investigated to establish its reliability in detecting and locating fatigue crack damage as well as distinguishing between di erent AE sources in potential SHM applications.
Gagar, Daniel Omatsola
core  

Fatigue life assessment of a railway wheel material under HCF and VHCF conditions

open access: yesMATEC Web of Conferences, 2018
Fatigue damage and life assessment is still an issue and a challenge nowadays. Many different tests can be performed for the assessment of fatigue properties of any given material. In the present study a worn out railway wheel goes under uniaxial fatigue
Soares H., Costa P., Freitas M., Reis L.
doaj   +1 more source

Ultrasonic fatigue of a high strength steel

open access: yesJournal of Physics: Conference Series, 2010
At the Institute of Materials Science and Engineering at the University of Kaiserslautern an ultrasonic testing system for the fatigue assessment of metallic materials in the very high cycle fatigue (VHCF) regime was developed. The ultrasonic testing system allows to control the test and to measure detailed fatigue data.
M Koster, G Wagner, D Eifler
openaire   +1 more source

Data fusion for defect characterisation using a dual probe system [PDF]

open access: yes, 2008
We present recent work on a dual probe system containing electromagnetic acoustic transducers (EMATs) generating and detecting surface ultrasonic waves, and a pulsed eddy current (PEC) probe.
Dixon, S.   +6 more
core   +1 more source

Ultrasonic Investigation of Tensile Fatigue Overloads in Fatigue Cracks

open access: yes, 1989
The growth of a fatigue crack is generally modeled in terms of empirical rules such as the Paris law [1] which states that da/dN = A(ΔK)m where a is the crack length, N is the number of fatigue cycles at a particular stress intensity range ΔK and A and m are material constants. Recently, evidence has accumulated that establishes that the full excursion
Rehbein, David   +3 more
openaire   +3 more sources

Controlled Pre-Corrosion Attack and Ultrasonic Fatigue Endurance of Titanium Alloy Ti-6Al-4V

open access: yesLatin American Journal of Solids and Structures
Ultrasonic fatigue tests were carried out on titanium alloy Ti-6Al-4V on the base material and the pre-corroded specimen to assess the pre-corrosion effect on the fatigue life of this alloy.
Ishvari F. Zuñiga Tello   +3 more
doaj   +1 more source

Interaction of laser generated ultrasonic waves with wedge-shaped samples [PDF]

open access: yes, 2012
Wedge-shaped samples can be used as a model of acoustic interactions with samples ranging from ocean wedges, to angled defects such as rolling contact fatigue, to thickness measurements of samples with non-parallel faces.
Edwards, R. S. (Rachel S.)   +5 more
core   +1 more source

A method for the strain rate dependent correction for control type of fatigue tests

open access: yes, 2022
Art. 105726In this paper, we investigate the influence of the control type of cyclic tests on the lifetime of the specimens tested. We present a strain rate dependent method to compare results of displacement controlled fatigue tests to results of force ...
Melz, Tobias   +5 more
core   +1 more source

Improvement in fatigue life of Al 7475-T7351 alloy specimens by applying ultrasonic and microshot peening

open access: yes, 2016
Shot peening and ultrasonic peening are widely used mechanical surface treatment in the automotive and aerospace industries to improve the fatigue life of metallic components.
Ferreira, N.   +4 more
core   +1 more source

Large plate monitoring using guided ultrasonic waves

open access: yes, 2015
Areas of stress concentration around welded structures are likely to lead to fatigue cracks and corrosion pitting during the life time of technical machinery.
Ghandourah, EII
core  

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