Zobrazeno 1 - 9
of 9
pro vyhledávání: '"R J Freemantle"'
Publikováno v:
Insight - Non-Destructive Testing and Condition Monitoring. 47:129-132
There has been an increase in the use of composite materials in the aerospace industry which is driving a need for new NDT techniques that can rapidly scan large structures and provide quantitative data on the material integrity. In many applications
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d6de3a6c45bb6f3537790f8643e0333
https://doi.org/10.1784/insi.47.3.129.61315
https://doi.org/10.1784/insi.47.3.129.61315
Autor:
Panagiotis I. Karkanas, R. J. Freemantle, D.J. Dare, M. E. Unwin, R. E. Challis, D.L. Chadwick, Ivana K. Partridge
Publikováno v:
Journal of Applied Polymer Science. 88:1665-1675
This article presents a comparison of data obtained from a low-temperature cure of an epoxy/amine system by three independent cure monitoring techniques: ultrasonic wave propagation, dielectric permittivity, and nuclear magnetic resonance. The sizes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33fdbbad085040770235f82301129e1b
https://doi.org/10.1002/app.11822
https://doi.org/10.1002/app.11822
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
Autor:
R E Challis, R J Freemantle
Publikováno v:
Measurement Science and Technology. 9:1291-1302
This paper describes an ultrasonic technique to study the propagation of wide bandwidth compression and shear wave pulses in a curing adhesive. A temperature controlled water filled test cell with transducers placed at either end is used to couple ul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5197f28f352951c1f1091312b6c82d4b
https://doi.org/10.1088/0957-0233/9/8/023
https://doi.org/10.1088/0957-0233/9/8/023
Publikováno v:
Measurement Science and Technology. 4:1129-1137
This paper presents a novel broad band short-pulse ultrasonic system for the simultaneous measurement of compression and shear acoustic wave velocities in thin solid slabs. Using a goniometer stage a test sample is immersed in a water cell between tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a311fb387923e2b96be56665380bb59
https://doi.org/10.1088/0957-0233/4/10/017
https://doi.org/10.1088/0957-0233/4/10/017
Publikováno v:
AIP Conference Proceedings.
This paper describes the development and modeling of an ultrasonic array wheel probe scanning system. The system operates at 10 MHz using a 64 element array transducer which is 50 mm in length and located in a fluid filled wheel. The wheel is coupled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d3c5f6f349832f35f1156f4570b0959
https://doi.org/10.1063/1.1711701
https://doi.org/10.1063/1.1711701
Publikováno v:
Review of Scientific Instruments. 64:1271-1273
This article describes an economical short‐pulse ultrasound system with a goniometer stage, with which both compression and shear wave reverberations in thin ceramic or other material samples may be separately time resolved. Arrival times of indivi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::562db9c2f81ad65c80fd0b1b6b2be729
https://doi.org/10.1063/1.1144078
https://doi.org/10.1063/1.1144078
Autor:
R. J. Freemantle, Watson Fuller, D. Chadwick, C. Martin, R. E. Challis, A. Mahendrasingham, R.P. Cocker
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461371700
The motivation behind this work was a requirement to optimise the cure cycles of adhesive used in the construction of automotive body shells and to establish the tolerance of the adhesive to uneven heating during cure, and to variation in the ratio o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::163ab6c77cbe7aaba30d66530ca3e3c9
https://doi.org/10.1007/978-1-4615-4791-4_280
https://doi.org/10.1007/978-1-4615-4791-4_280
Autor:
R. E. Challis, M. E. Unwin, D. L. Chadwick, R. J. Freemantle, I. K. Partridge, D. J. Dare, P. I. Karkanas
Publikováno v:
Journal of Applied Polymer Science; May2003, Vol. 88 Issue 7, p1665-1675, 11p