Zobrazeno 1 - 10
of 32
pro vyhledávání: '"R.P. Cocker"'
Autor:
D.J. Dare, R.P. Cocker, Watson Fuller, Arumugam Mahendrasingam, C. Martin, R. E. Challis, R. J. Freemantle, D.L. Chadwick
Publikováno v:
Plastics, Rubber and Composites. 29:109-118
The tracking of the cure of epoxy adhesives and the assessment of the cure state of adhesive bondlines joining engineering components are important for quality assurance during manufacture and for the safe functioning of manufactured assemblies in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b5ab9e332130fad95473e313907017b
https://doi.org/10.1179/146580100101540860
https://doi.org/10.1179/146580100101540860
Publikováno v:
International Journal of Adhesion and Adhesives. 18:319-331
The cure of an epichlorohydrin-bisphenol A resin and hardener containing a primary diamine and an amido-polyamine has been studied using two complementary non-invasive techniques. Low resolution pulsed nuclear magnetic resonance has been used to trac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36ea823c0e62bd7335cbf917f31a9df7
https://doi.org/10.1016/s0143-7496(98)00013-x
https://doi.org/10.1016/s0143-7496(98)00013-x
Publikováno v:
The Journal of the Acoustical Society of America. 103:1413-1420
Absorption of ultrasound in adhesive materials is significant in forming ultrasonic signals obtained in nondestructive evaluation (NDE) procedures, and may also have diagnostic value in the evaluation of adhesive materials themselves. This paper inve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef9f4c10b01730126a4b007a4d6cef9f
https://doi.org/10.1121/1.421281
https://doi.org/10.1121/1.421281
Autor:
R.E. Challis, R.P. Cocker
Publikováno v:
Journal of Sound and Vibration. 193:1049-1068
Tubular array structures are a very common component in industrial heat exchanging plant and the non-destructive testing of these arrays is essential. Acoustic methods using microphones or ultrasound are attractive but require a thorough understandin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::815fde85371038e3dc873d8fe5bc7ba2
https://doi.org/10.1006/jsvi.1996.0331
https://doi.org/10.1006/jsvi.1996.0331
Publikováno v:
Ultrasonics. 34:355-361
This paper describes an investigation of the effects of fillers in adhesive polymers on ultrasonic compression wave absorption and phase velocity dispersion as functions of frequency in the range 10 to 70 MHz. The problem addressed is that wave propa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::995ce539bb1e86ceb5faa40fa380b991
https://doi.org/10.1016/0041-624x(95)00112-g
https://doi.org/10.1016/0041-624x(95)00112-g
Ultrasonic compression wave propagation in adhesive polymers described as a signal filtering process
Autor:
R.P. Cocker, R. E. Challis
Publikováno v:
Ultrasonics. 33:311-319
The ability to test adhesively bonded metal structures non-destructively requires an understanding of ultrasound wave propagation in adhesive materials. This paper presents the results of an experimental study of wave absorption and phase velocity di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2ee0c277fe7ee9ec274823da9e349b7
https://doi.org/10.1016/0041-624x(94)00048-t
https://doi.org/10.1016/0041-624x(94)00048-t
Publikováno v:
Journal of Applied Polymer Science. 44:65-81
This article presents a novel short-pulse ultrasonic technique for measuring the relaxing planewave modulus in realistically thin films of adhesive polymer over wide-frequency bandwidths (1 MHz to between 30 and 100 MHz). On-line computational method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe3820090dd13c19f3d4e94ea121d7d0
https://doi.org/10.1002/app.1992.070440107
https://doi.org/10.1002/app.1992.070440107
Publikováno v:
The Journal of the Acoustical Society of America. 90:730-740
An acoustic near plane‐wave absorption spectrometer has been developed for use in small samples of liquid (30 ml) over bandwidths of up to 60 MHz, using a two transducer short‐pulse transmission technique. The instrument is controlled by computer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f93b60e47c0d60ec124d943faaea7171
https://doi.org/10.1121/1.401943
https://doi.org/10.1121/1.401943
Publikováno v:
Ultrasonics. 29:22-28
This paper presents a new technique for the measurement of plane wave absorption and propagation velocity as functions of frequency in thin layers of adhesive polymer. The adhesive layer thickness can be in the range 0.05–2 mm and the frequency ran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e668f0f66eb149a29e1e438dbbf3afef
https://doi.org/10.1016/0041-624x(91)90169-9
https://doi.org/10.1016/0041-624x(91)90169-9
Publikováno v:
Measurement Science and Technology. 2:59-68
The authors present a novel wide bandwidth pulse transmission technique for the study of the interactions between near-plane-wave ultrasound and thin films (down to 50 mu m) of adhesive polymer set between glass substrates. Acoustically thick transdu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31642519766882e4e266fbac3235e7eb
https://doi.org/10.1088/0957-0233/2/1/010
https://doi.org/10.1088/0957-0233/2/1/010