Results 51 to 60 of about 145,304 (328)

Weakening Detection of Composite Structure Adhesive Layer Based on Nonlinear Guided Waves

Applied Sciences
In this study, a detection method utilizing nonlinear ultrasonic guided waves is presented to tackle the difficulties in detecting localized damage and weakening in bonded composite structures.
Fanqiang Bu, Wencong Wei, Xingguo Wang, Xiaogao Li, Guolang Shen, Chengwen Ma, Guoxing Tang   +6 more
doaj   +1 more source

Large plate monitoring using guided ultrasonic waves [PDF]

, 2015
Areas of stress concentration around welded structures are likely to lead to fatigue cracks and corrosion pitting during the life time of technical machinery.
Ghandourah, EII
core  

High sensitivity flexible Lamb-wave humidity sensor with graphene oxide sensing layer [PDF]

, 2015
This paper reports high performance flexible lamb wave sensors with a graphene oxide sensing layer. The devices were fabricated on piezoelectric ZnO thin films deposited on flexible polyimide substrates.
He, Xingli, Xu, Yang, Wang, Wenbo, Chen, Jinkai, Xuan, Weipeng, Fu, Yong Qing, Wang, Xiaozhi, Xu, Zhen, Fu, Y. Q., Luo, Jikui, Luo, J.   +10 more
core   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Damage identification and location method for welded pipe using ultrasonic guided wave

You-qi chuyun
[Objective] The damage detection technology based on ultrasonic guided waves has broad application prospects in the rapid damage detection of long-distance pipes.
ZHOU Kai, YIN Jiangshui, ZHU Yaqian, MA Qi, WEI Xiaolong   +4 more
doaj   +1 more source

The upcoming revolution in ultrasonic guided waves [PDF]

SPIE Proceedings, 2011
This paper will include discussions on fundamental principles and market forces associated with the upcoming revolution in ultrasonic guided waves. A literature survey is also outlined covering some selected major developments this past decade. A few applications in pipe, rail, bonding and composites, imaging and tomography, ultrasonic vibration, de-
openaire   +1 more source

Signal processing methods for defect detection in multi-wire helical waveguides using ultrasonic guided waves [PDF]

, 2015
This thesis was submitted for the degree of Master of Philosophy and awarded by Brunel University LondonNon-Destructive Testing of industrial components carries vital importance, both financially and safety-wise.
Yucel, Mehmet Kerim
core  

Surface temperature condition monitoring methods for aerospace turbomachinery: exploring the use of ultrasonic guided waves

Measurement science and technology, 2021
Turbine blades and nozzle guide vanes (NGVs) are operated at extreme temperatures in order to maximise thermal efficiency and power output of an engine.
Lawrence Yule, B. Zaghari, N. Harris, M. Hill   +3 more
semanticscholar   +1 more source

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

Advanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen, Chi Cong Nguyen, Tran Bach Dang, Phuoc Thien Phan, Jordan Thorpe, Michael Listyawan, Nhat Minh Doan, Sinuo Zhao, Hongru Chen, Trung Thien Hoang, Mingsheng Xu, Jisheng Han, Thanh Nho Do, Adam Hill, Timothée Mouterde, Hoang‐Phuong Phan   +15 more
wiley   +1 more source

Explore Ultrasonic-Induced Mechanoluminescent Solutions towards Realising Remote Structural Health Monitoring

Sensors
Ultrasonic guided waves, which are often generated and detected by piezoelectric transducers, are well established to monitor engineering structures. Wireless solutions are sought to eliminate cumbersome wire installation. This work proposes a method for
Marilyne Philibert, Kui Yao
doaj   +1 more source