Results 61 to 70 of about 705,219 (314)

Bending and Torsion Fatigue-Testing Machine Developed for Multiaxial Non-Proportional Loading

Metals, 2019
A new fatigue-testing machine was developed to perform high-cycle multiaxial fatigue tests at 50 Hz, in order to reduce testing time. The developed machine can combine bending and torsion loading and perform fatigue tests at a high frequency, under ...
Fumio Ogawa, Yusuke Shimizu, Stefano Bressan, Takahiro Morishita, Takamoto Itoh   +4 more
doaj   +1 more source

Improved resonance method for fatigue test of full-scale wind turbine blades

AIP Advances, 2022
To further reduce the power of exciter in the common fatigue testing methods and increase the testing frequency to decrease the fatigue testing time, this paper proposes an improved fatigue testing method—Tug Fatigue Testing system (TFTs). The advantages
Aiguo Zhou, Jinlei Shi, Yi Ma, Xiufeng Xu   +3 more
doaj   +1 more source

Will Memantine Exacerbate Seizures in People With Epilepsy? A Prospective Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate whether add‐on memantine would exacerbate seizures in people with epilepsy. Methods This was a prospective cohort study. People with epilepsy diagnosed with cognitive impairment were consecutively invited. Those who agreed were followed up for at least 24 weeks.
Peiyu Wang, Lu Lu, Hui Gao, Qi Zhang, Jing Xiao, Josemir W. Sander, Weixi Xiong, Dong Zhou   +7 more
wiley   +1 more source

Efficient Reconstruction of High-Resolution Tidal Turbine Blade Deflection and Strain Maps Through Sensing Location Optimisation

Journal of Marine Science and Engineering
During fatigue tests of tidal turbine blades, digital image correlation (DIC) is used to collect vital information about the specimen. DIC provides high-resolution displacement and strain maps of selected blade sections; however, continuous operation is ...
Marek J. Munko, Miguel A. Valdivia Camacho, Fergus Cuthill, Conchúr M. Ó Brádaigh, Sergio Lopez Dubon   +4 more
doaj   +1 more source

Compression-compression fatigue of Pd_(43)Ni_(10)Cu_(27)P_(20) metallic glass foam [PDF]

, 2010
Compression-compression fatigue testing of metallic-glass foam is performed. A stress-life curve is constructed, which reveals an endurance limit at a fatigue ratio of about 0.1.
Demetriou, Marios D., Johnson, William L., Liaw, Peter K., Schramm, Joseph P., Wang, Gongyao   +4 more
core  

Association of Corticospinal Tract Asymmetry With Ambulatory Ability After Intracerebral Hemorrhage

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Ambulatory ability after intracerebral hemorrhage (ICH) is important to patients. We tested whether asymmetry between ipsi‐ and contra‐lesional corticospinal tracts (CSTs) assessed by diffusion tensor imaging (DTI) is associated with post‐ICH ambulation.
Yasmin N. Aziz, Carl D. Langefeld, Mary E. Comeau, Miranda C. Marion, Tyler P. Behymer, Lee A. Gilkerson, Padmini Sekar, Weihong Yuan, Vivek Khandwala, Brady J. Williamson, Thomas Maloney, Achala Vagal, Pierce Boyne, Kari Dunning, Matthew L. Flaherty, Steven J. Kittner, Prachi Mehndiratta, Gunjan Y. Parikh, Michael L. James, David Roh, Fernando D. Testai, Farhaan S. Vahidy, James Thornton, Ranjit Bagga, Daniel Woo, Stacie L. Demel   +25 more
wiley   +1 more source

Design and Experimental Study of a Down-Drive Piezoelectric High-Frequency Fatigue Testing Machine

Applied Sciences
In order to solve the problem of large dynamic load and low loading accuracy prevailing in traditional fatigue testing machines, and to meet the fatigue test loading demand of alternating small-load microelectromechanical devices and bionic devices, a ...
Sida Zhang, Zhigang Yang, Jiangwei Liu
doaj   +1 more source

Review of Multiaxial Testing for Very High Cycle Fatigue: From ‘Conventional’ to Ultrasonic Machines

Machines, 2020
Fatigue is one of the main causes for in service failure of mechanical components and structures. With the development of new materials, such as high strength aluminium or titanium alloys with different microstructures from steels, materials no longer ...
Pedro Costa, Richard Nwawe, Henrique Soares, Luís Reis, Manuel Freitas, Yong Chen, Diogo Montalvão   +6 more
doaj   +1 more source

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

Fatigue testing a plurality of test specimens and method [PDF]

, 1987
Described is a fatigue testing apparatus for simultaneously subjecting a plurality of material test specimens to cyclical tension loading to determine the fatigue strength of the material.
Hodo, James D., Moore, Dennis R., Morris, Thomas F., Tiller, Newton G.   +3 more
core   +1 more source