Results 31 to 40 of about 7,801 (296)

Fatigue crack initiation and growth on a steel in the very high cycle regime with sea water corrosion [PDF]

open access: yes, 2010
The authors acknowledge Arts et Métiers ParisTech and Foundation Arts et Métiers for the financial support of P.C. Paris’ stay at LAMEFIP. They acknowledge Vicinay Cadenas S.A.
PARIS, Paul C.   +6 more
core   +1 more source

Non-contact ultrasonic detection of angled surface defects [PDF]

open access: yes, 2011
Non-destructive testing is an important technique, and improvements are constantly needed. Surface defects in metals are not necessarily confined to orientations normal to the sample surface; however, much of the previous work investigating the ...
A.R. Clough   +7 more
core   +1 more source

Crack path and fracture surface analysis of ultrasonic fatigue testing under multiaxial loadings [PDF]

open access: yes, 2022
Ultrasonic fatigue testing machines and related research are continuously growing. They allow researchers to study fatigue in a time and energy reliable manner, fatigue strength and fracture mechanics between 10E06 to 10E10 cycles, the established Very ...
Freitas, Manuel   +9 more
core   +1 more source

Fatigue deformation of 1050 aluminum in ultrasonic fatigue testing.

open access: yesJournal of Japan Institute of Light Metals, 1995
Ultrasonic fatigue tests have been performed on commercial 1050 aluminum. Internal friction (Q-1) has been measured during fatigue tests and as a function of strain amplitude (e). It is shown that more than 109 cycles test is necessary in order to determine the fatigue limit. Q-1 versus e curves have the inflection points at particular strain amplitude
YAMAMOTO, Atsushi   +4 more
openaire   +1 more source

Thermal response of DP600 dual-phase steel under ultrasonic fatigue loading [PDF]

open access: yes, 2016
The present work employed in situ infrared thermography to investigate the thermal response and dissipative mechanisms of a dual-phase steel under ultrasonic tension-compression fatigue testing. A classical thermal response occurred for stress amplitudes
RANC, Nicolas   +5 more
core   +1 more source

Experiment-Based Fatigue Behaviors and Damage Detection Study of Headed Shear Studs in Steel–Concrete Composite Beams

open access: yesApplied Sciences, 2021
Many in-service bridges with steel–concrete composite beams are currently aging and experiencing performance deterioration. Under long-term cyclic loads from traffic on bridges, headed shear studs in steel–concrete composite beams are vulnerable to ...
Jun Xu   +3 more
doaj   +1 more source

An Ultra-High Frequency Vibration-Based Fatigue Test and Its Comparative Study of a Titanium Alloy in the VHCF Regime

open access: yesMetals, 2020
This paper proposes an ultra-high frequency (UHF) fatigue test of a titanium alloy TA11 based on electrodynamic shaker in order to develop a feasible testing method in the VHCF regime.
Wei Xu   +6 more
doaj   +1 more source

A new test methodology based on structural resonance for mode I fatigue delamination growth in an unidirectional composite [PDF]

open access: yes, 2013
A specific device has been set up to test by vibration resonance the mode I fatigue delamination growth onset of composite laminates. This test system, based on the DCB test specimen, is a mass-spring-specimen dynamic system designed to resonate.
Rico, Germain   +4 more
core   +1 more source

Fatigue Tests of Metals at Ultrasonic Frequency

open access: yesBulletin of JSME, 1958
A testing equipment and measurements are reported of the fatigue of metals under supersonic frequency. This equipment has an advantage over conventional fatigue machines that stress alternations up to 108 reversals can be made within an hour or so. At the resonant condition, metal samples are subjected to alternating stresses above the fatigue limit by
AWATANI, Jobu, MIYAMOTO, Hiroshi
openaire   +2 more sources

On the Specimen Design, Physical Properties and Geometry Effect on Heat Generation and Thermal Gradient in Ultrasonic Fatigue

open access: yesMachines
Performing fatigue characterisation is often an expensive task, being both time consuming and expensive. Taking that into account, ultrasonic fatigue testing is an interesting solution, since it can be thousands of times faster than traditional ...
Felipe Klein Fiorentin   +5 more
doaj   +1 more source

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