Results 51 to 60 of about 122,069 (205)

The application of ultrasonic NDT techniques in tribology [PDF]

open access: yes, 2005
The use of ultrasonic reflection is emerging as a technique for studying tribological contacts. Ultrasonic waves can be transmitted non-destructively through machine components and their behaviour at an interface describes the characteristics of that ...
Anderson W.   +12 more
core   +1 more source

Discussion on Road Reflection Crack and Control

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract This paper focused on the problems encountered in the road construction of a coal-fired power plant in the Philippines as an example. Some cracks and damage appeared in the roadbed after the road concrete base layer has been built.
Huifang Zhao, Hongbo Li
openaire   +1 more source

Review of reflective cracking in composite pavements

open access: yesInternational Journal of Pavement Research and Technology, 2020
Reflective cracking is identified as the main weakness of composite pavement in airfield and highways forcing the authorities to devote a large portion of their budget to rehabilitation and/or reconstruction of the existing composite pavements. It is, therefore, very important to have a better understanding of the reflective cracking mechanism to ...
Sahar Deilami, G. White
openaire   +1 more source

Reflection Crack Analysis of Asphalt Overlay on Cement Concrete Pavement Based on XFEM

open access: yesAdvances in Civil Engineering, 2021
Based on the improved Paris formula, the reflection cracking characteristics of asphalt overlay on the cement concrete pavement are carefully scrutinized.
Qiang Li, Zhixiang Chen, Shaohui Luo
doaj   +1 more source

Metal Surface Defect Detection Method Based on TE01 Mode Microwave

open access: yesSensors, 2022
With the aim of addressing the difficulty of detecting metal surface cracks and corrosion defects in complex environments, we propose a detection method for metal surface cracks and corrosion defects based on TE01-mode microwave.
Meng Shi   +3 more
doaj   +1 more source

Study on quantitative detection of fatigue cracks for hollow axles on high-speed trains by the total focus method

open access: yes机车电传动, 2022
Among the important components on high-speed trains, hollow axles are detected from the inner bore surface for transverse fatigue cracks on the outer surface by the conventional ultrasonic technique, as a measure to ensure the operation safety of high ...
HUANG Yongcong   +2 more
doaj  

Fatigue cracks detected and measured without test interruption [PDF]

open access: yes, 1966
Ultrasonic flaw detector records cracks in materials undergoing fatigue tests, without interfering with test progress.
Freche, J. C.   +2 more
core   +1 more source

The scattering of general SH plane wave by interface crack between two dissimilar viscoelastic bodies [PDF]

open access: yes, 1999
The scattering of general SH plane wave by an interface crack between two dissimilar viscoelastic bodies is studied and the dynamic stress,intensity factor at the crack-tip is computed.
Li RKY   +4 more
core   +1 more source

Specular Reflection by Contacting Crack Faces

open access: yes, 1984
Non-linear relations are postulated between the transmitted tractions and the crack opening displacements across contacting rough crack faces. For the opening mode these relations take into account that a crack easily opens, but that the resistance to crack closure increases rapidly as the rough crack faces come in contact.
Achenbach, J., Norris, A.
openaire   +3 more sources

Crack Extraction for Polycrystalline Solar Panels

open access: yesEnergies, 2021
Crack extraction of solar panels has become a research focus in recent years. The cracks are small and hidden. In addition, there are particles of irregular shape and size on the surface of the polycrystalline solar panel, whose reflection position and ...
Bai Xue   +6 more
doaj   +1 more source

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