Results 81 to 90 of about 83,305 (186)

A new piezoelectric fatigue testing machine in pure torsion for ultrasonic gigacycle fatigue tests: application to forged and extruded titanium alloys

open access: yesFatigue & Fracture of Engineering Materials & Structures, 2015
AbstractThis article briefly discusses the history of the development of ultrasonic fatigue testing methods, with respect to industrial needs. The development of ultrasonic techniques and the progress made in the computer industry have led to improvements in ultrasonic testing techniques. It has been shown, that existing ultrasonic testing systems have
NIKITIN, Alexander   +2 more
openaire   +2 more sources

Proceedings of Abstracts Engineering and Computer Science Research Conference 2019 [PDF]

open access: yes, 2019
© 2019 The Author(s). This is an open-access work distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Adams, Roderick   +81 more
core   +2 more sources

Different properties of coronary stents [PDF]

open access: yes, 2007
Stents are mesh structured implants which are used to support the vessel wall in the balloon expanded vessel part. Several methods were developed and applied for the determination of mechanical properties of coronary stents, as a part of a complex pre ...
Bognár, Eszter   +3 more
core  

A synthetic approach to weathering degree classification of stone relics case study of the Yungang Grottoes

open access: yesHeritage Science, 2018
Classification of the weathering degree of large outdoor stone relics has long been a challenge in their protection engineering. An approach to classifying the weathering levels of the Yungang Grottoes is presented in this paper.
Tianhua Meng   +5 more
doaj   +1 more source

Research on ultrasonic testing method for tangential contact stress based on equivalent medium theory

open access: yesUltrasonics Sonochemistry
As a weak link, the joint surface of machine tools directly affects the stiffness and machining accuracy of the entire machine tool. However, obtaining the distribution of contact stress is a key problem that urgently needs to be solved in exploring the ...
Nana Niu   +4 more
doaj   +1 more source

Effects of four aluminum foil placement modes in testing cavitation effect of ultrasonic cleaning machine

open access: yesSterile Supply
ObjectiveThe present study intends to compare four aluminum foil placement modes in testing the cavitation effect of an ultrasonic cleaning machine so as to provide a reference for the operation in the central sterile supply department (CSSD).MethodsThe ...
Xiaoying Lai, Zhijuan Xu, Wei Zheng
doaj   +1 more source

Assessment of Ultra-High Cycle Fatigue Behavior of EN-GJL-250 Cast Iron Using Ultrasonic Fatigue Testing Machine

open access: yes, 2019
High cycle fatigue comprising up to 107 load cycles has been the subject of many studies, and the behavior of many materials was recorded adequately in this regime. However, many applications involve larger numbers of load cycles during the lifetime of machine components.
Bakhtiari, Saeedeh   +3 more
openaire   +2 more sources

Ultrasonic stress wave characterization of composite materials [PDF]

open access: yes
The work reported covers three simultaneous projects. The first project was concerned with: (1) establishing the sensitivity of the acousto-ultrasonic method for evaluating subtle forms of damage development in cyclically loaded composite materials, (2 ...
Duke, J. C., Jr.   +2 more
core   +1 more source

High reliability bond program using small diameter aluminum wire [PDF]

open access: yes
The program was undertaken to characterize the performance of small diameter aluminum wire ultrasonically bonded to conductors commonly encountered in hybrid assemblies, and to recommend guidelines for improving this performance.
Macha, M., Thiel, R. A.
core   +1 more source

VHCF Properties of A7075-T651 Al Alloy Depending on Shot Peening and Fatigue Testing Methods

open access: yesAdvances in Mechanical Engineering, 2015
Fatigue characteristics of A7075-T651 aluminum material were studied with surface treatment of shot peening. The fatigue life was characterized by two fatigue testing methods, ultrasonic fatigue test (UFT, 20 kHz) and the rotary-bending fatigue test (RFT,
Min-Soo Suh   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy