Results 21 to 30 of about 11,298 (262)

Ultrasonic fatigue experiments with biaxial cruciform specimens [PDF]

MATEC Web of Conferences, 2019
Fatigue studies of materials in simple or complex loading systems for any given lifetime is object of continuous research. This is due to the advancements on mechanical and structural components, as well as for new and innovative materials, which implies
da Costa Pedro R., Montalvão Diogo, Freitas Manuel, Reis Luis   +3 more
doaj   +1 more source

Improvement of fatigue strength for aluminum alloy bolts using ultrasonic cavitation peening

Journal of Advanced Mechanical Design, Systems, and Manufacturing
Ultrasonic cavitation peening is one of surface treatments to improve surface hardness. In the ultrasonic cavitation peening, the surface was treated using shock waves generated when the cavitation bubbles break.
Shinji HASHIMURA, Keita YOKOI
doaj   +1 more source

The fatigue damage evaluation of gear in sugarcane presser using higher order ultrasonic nonlinear coefficients

Results in Physics, 2018
The fatigue damage of gear in sugarcane presser is one of the most common damages, which is very difficult to detect in sugar factory. The nonlinear ultrasonic technique is used to evaluate the fatigue damage of gear in this paper.
Hanying Mao, Yuhua Zhang, Hanling Mao, Zhenfeng Huang, Jianwen Fan, Xinxin Li, Xiaoping Li   +6 more
doaj   +1 more source

Monitoring Low-Cycle Fatigue Material-Degradation by Ultrasonic Methods

Atom Indonesia, 2010
Any system consisting of structural material often undergoes fatigue, which is caused by dynamic load cycle. As a structural system, nuclear power plant is very likely to have low-cycle fatigue at many of its components.
R. Himawan , H. Katoh , A. Cahyono
doaj   +1 more source

Crack Detection of Threaded Steel Rods Based on Ultrasonic Guided Waves

Sensors, 2022
Fatigue cracks are typical damage of threaded steel rods under dynamic loads. This paper presents a study on ultrasonic guided waves-based, fatigue-crack detection of threaded rods.
Kunhong Peng, Yi Zhang, Xian Xu, Jinsong Han, Yaozhi Luo   +4 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

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

Improving fatigue performance of surface-damaged Ti-6Al-4V alloy via ultrasonic surface rolling process [PDF]

MATEC Web of Conferences, 2020
Surface damages caused by markings, like laser marking and mechanical marking are detrimental to the fatigue performance of the components. To improve the fatigue performance of laser marked or mechanical marked Ti-6Al-4V alloy, ultrasonic surface ...
Ao Ni, Liu Daoxin, Zhang Xiaohua
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

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source