Results 11 to 20 of about 6,589 (215)

Development of a Very High Cycle Fatigue (VHCF) multiaxial testing device [PDF]

Fracture and Structural Integrity, 2016
The very high cycle region of the S-N fatigue curve has been the subject of intensive research on the last years, with special focus on axial, bending, torsional and fretting fatigue tests.
M. Vieira, M. de Freitas, L. Reis, A. M. R. Ribeiro   +3 more
doaj   +3 more sources

Fretting Fatigue Behaviour of Alloy Steel in the Very High Cycle Region [PDF]

MATEC Web of Conferences, 2019
It is well known that fretting fatigue strength is much lower than the fatigue strength of smooth specimens and the fatigue limit disappears. Many studies on fretting fatigue have been reported but most of the studies have not cover fatigue properties in
Shimamura Yoshinobu, Kasahara Reo, Ishii Hitoshi, Tohgo Keiichiro, Fujii Tomoyuki, Yagasaki Toru, Sumida Soichiro   +6 more
doaj   +1 more source

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

Applied 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, Huahuai Sun, Weizhen Chen, Xuan Guo   +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

Metals, 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, Yanguang Zhao, Xin Chen, Bin Zhong, Huichen Yu, Yuhuai He, Chunhu Tao   +6 more
doaj   +1 more source

Effect of Ultrasonic Shot Peening on the Microstructure and Fatigue Properties of FGH99 Alloy [PDF]

Cailiao Baohu
In order to improve the high-temperature performance of turbine discs， an ultrasonic shot peening test was conducted on FGH99 alloy for turbine discs.The microstructure and fatigue properties of FGH99 alloy after ultrasonic shot peening treatment were ...
SONG Yinggang, LUO Xuekun, WANG Xin, FENG Yefei, TIAN Gaofeng
doaj   +1 more source

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

Machines
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, Rita Dantas, Jorge Wolfs Gil, Andrea Piga Carboni, Thiago Antonio Fiorentin, Abílio Manuel Pinho de Jesus   +5 more
doaj   +1 more source

Properties of GH4169 Superalloy Characterized by Nonlinear Ultrasonic Waves

Advances in Materials Science and Engineering, 2015
The nonlinear wave motion equation is solved by the perturbation method. The nonlinear ultrasonic coefficients β and δ are related to the fundamental and harmonic amplitudes.
Hongjuan Yan, Chunguang Xu, Dingguo Xiao, Haichao Cai   +3 more
doaj   +1 more source

Fatigue lifetime of AlBC(3) alloy by ultrasonic fatigue testing machine in cavitation regime

The Journal of Engineering, 2015
In this study, the influence of ultrasonic nanocrystalline surface modification (UNSM) technique on the cavitation fatigue properties of AlBC(3) alloy was investigated.
I.S. Cho, A. Amanov, I.G. Park
doaj   +1 more source

Very high-cycle fatigue properties of 90° unidirectional CFRP laminates and evaluation of fatigue limits by free volume measurement using positron microscopy

Mechanical Engineering Journal, 2023
The objective of this study was to experimentally evaluate the fatigue limit of 90° unidirectional carbon fiber reinforced plastic (CFRP) laminates.
Masafumi TAZUKE, Tsuyoshi MIYAKOSHI, Atsushi HOSOI, Koji MICHISHIO, Nagayasu OSHIMA, Hiroyuki KAWADA   +5 more
doaj   +1 more source

Prediction of Fatigue Damage Evolution in 3D-Printed CFRP Based on Ultrasonic Testing and LSTM

Applied Sciences
To address the prediction of fatigue damage for 3D-printed Carbon Fiber Reinforced Polymer (CFRP), this study used 3D-printing technology to fabricate CFRP specimens. Through multi-stage fatigue testing, samples with varying porosity levels were obtained.
Erzhuo Li, Sha Xu, Hongqing Wan, Hao Chen, Yali Yang, Yongfang Li   +5 more
doaj   +1 more source