Fractography combined with unsupervised pattern recognition of acoustic emission signals for a better understanding of crack propagation in adhesively bonded wood
Sign Up to like & getrecommendations! Published in 2019 at "Wood Science and Technology"
DOI: 10.1007/s00226-019-01136-6
Abstract: In this paper, acoustic emission (AE) signals obtained during quasi-static crack propagation in adhesively bonded beech wood were classified using an unsupervised pattern recognition method. Two ductile one-component polyurethane (1C-PUR) adhesives with the same formulation… read more here.
Keywords: crack propagation; emission signals; wood; acoustic emission ... See more keywords
Crack detection and localization in a fluid pipeline based on acoustic emission signals
Sign Up to like & getrecommendations! Published in 2021 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2020.107254
Abstract: Abstract This paper introduces a novel approach to crack detection and localization in a pipeline transporting fluid under high pressure. From acoustic emission signals acquired by two R15i-AST sensors at two ends of a fluid… read more here.
Keywords: pipeline; emission; detection localization; acoustic emission ... See more keywords
Detecting acoustic-emission signals with fiber-optic interference transducers
Sign Up to like & getrecommendations! Published in 2017 at "Russian Journal of Nondestructive Testing"
DOI: 10.1134/s1061830917060031
Abstract: Results of the analysis of acoustic-emission signals generated due to ultrasonic waves propagating in a polymer composite material and registered with piezoelectric and fiber-optic sensors are presented. The fiber-optic sensors were arranged into an adaptive… read more here.
Keywords: composite material; fiber optic; emission signals; acoustic emission ... See more keywords
The influence of contact time and event frequency on acoustic emission signals
Sign Up to like & getrecommendations! Published in 2017 at "Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology"
DOI: 10.1177/1350650117693176
Abstract: Studies of acoustic emissions (AE) of rotating machine elements is often performed under a constant speed. There are few investigations on speed and contact time dependency of acoustic emission signals, even though some investigations have… read more here.
Keywords: emission signals; time; acoustic emission; contact time ... See more keywords
Analysis of the Significance of Changes in the Number and Energy Parameters of Acoustic Emission Signals on the Assessment of the Strength of Fibre–Cement Boards
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15165757
Abstract: The article presents the results of three-point bending tests carried out for samples cut from full-size fibre–cement boards subjected to typical and exceptional conditions. The tests were carried out with the simultaneous acquisition of acoustic… read more here.
Keywords: strength; fibre cement; number; emission signals ... See more keywords