Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Emmanuel P. Papadakis"'
Autor:
Emmanuel P. Papadakis, R. B. Thompson, Samuel J. Wormley, K. Forouraghi, H.D. Skank, D. D. Bluhm, G. A. Alers
Publikováno v:
Journal of Nondestructive Evaluation. 12:45-62
A fully automatic, ultrasonic instrument to measure texture and formability parameters on metal sheet is described. Arrays of EMAT transducers are used to transmit and receiveS o Lamb waves propagating at 0°, 45°, and 90° with respect to the rolli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82f3488ce7dc8915663b44ca11f1f27b
https://doi.org/10.1007/bf00565908
https://doi.org/10.1007/bf00565908
Autor:
Emmanuel P. Papadakis, Grant A. Gordon
Publikováno v:
The Journal of the Acoustical Society of America. 109:1761-1763
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26df42737fb82aa8b8432dc7aad0721d
https://doi.org/10.1121/1.1353596
https://doi.org/10.1121/1.1353596
Publikováno v:
The Journal of the Acoustical Society of America. 89:2753-2757
One thick filament-wound composite in the form of a large thick-walled cylinder with locally orthorhombic symmetry has been measured by ultrasonic velocity to calculate its elastic moduli. The basic assumption was that small sections of the composite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::953488c7f37b6f03226eb727f22c4e97
https://doi.org/10.1121/1.400714
https://doi.org/10.1121/1.400714
Publikováno v:
The Journal of the Acoustical Society of America. 88:945-950
A new ultrasonic measurement model using an angular spectrum of plane waves operating upon a Gauss–Hermite expansion of the transducer field has been used to explain the ultrasonic diffraction loss in the [110] direction in cubic crystals. In the [
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0025e3a20c6d6c8200e5f31e7fc06732
https://doi.org/10.1121/1.399744
https://doi.org/10.1121/1.399744
Autor:
Emmanuel P. Papadakis
Publikováno v:
Engineering Costs and Production Economics. 18:301-310
A wide variety of metrology instruments can now interface with computers to acquire and process data on parts as they are produced. In addition to accept/reject actions, the instrument can provide information for statistical analysis. For Statistical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cf6d52813dba6d787e7c9af32b2e3d0
https://doi.org/10.1016/0167-188x(90)90134-4
https://doi.org/10.1016/0167-188x(90)90134-4
Autor:
Emmanuel P. Papadakis
Publikováno v:
IEEE 1988 Ultrasonics Symposium Proceedings..
It is shown that, for statistical process control (SPC) using ultrasonic instruments for nondestructive evaluation (NDE) directly interfaced with a computer, a variable in every part can be measured at production line speeds and used in groups, typic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d38f8fba33c3e6102653d4342485e54
https://doi.org/10.1109/ultsym.1988.49432
https://doi.org/10.1109/ultsym.1988.49432
Autor:
R.B. Thompson, Samuel J. Wormley, H.D. Skank, Emmanuel P. Papadakis, G. A. Alers, K. Forouraghi, D. D. Bluhm
Publikováno v:
IEEE Symposium on Ultrasonics.
An ultrasonic instrument has been designed and fabricated to predict drawability of sheet metal. Using S/sub 0/ mode Lamb waves generated and detected by EMATs (electromagnetic-acoustic transducers), the instrument automatically measures ultrasonic p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42846fef6d1ffc08edf6c3b72fdb6d7b
https://doi.org/10.1109/ultsym.1990.171514
https://doi.org/10.1109/ultsym.1990.171514
Autor:
Emmanuel P. Papadakis
Publikováno v:
Handbook of Elastic Properties of Solids, Liquids, and Gases
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::168c82d15e439075f56afccd9cdd331d
https://doi.org/10.1016/b978-012445760-7/50044-7
https://doi.org/10.1016/b978-012445760-7/50044-7
Publikováno v:
Handbook of Elastic Properties of Solids, Liquids, and Gases
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1a90af8fc24e1b7d79ce27d6100acd1
https://doi.org/10.1016/b978-012445760-7/50004-6
https://doi.org/10.1016/b978-012445760-7/50004-6