Zobrazeno 1 - 10
of 12
pro vyhledávání: '"R. J. Conant"'
Publikováno v:
Ultrasonics. 40:1065-1077
The use of laser ablation as a means of generating ultrasonic waves in liquid metals is studied in this paper. A mathematical model for predicting the onset of ablation is developed, as is a model of the ablation process based on steady state, one-di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71f762ea7a2447809a49df5853b19cf8
https://doi.org/10.1016/s0041-624x(02)00257-3
https://doi.org/10.1016/s0041-624x(02)00257-3
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 44:902-908
A technique has been demonstrated which measures the optical absorption coefficient in weakly to moderately absorbing homogeneous isotropic elastic plates. This technique involves generating plate waves with a pulsed Nd:YAG laser and then detecting t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e83c58a0fce5b5b051e8e91729b151e
https://doi.org/10.1109/58.655205
https://doi.org/10.1109/58.655205
Autor:
B. W. Dandekar, R. J. Conant
Publikováno v:
International Journal for Numerical Methods in Engineering. 33:1513-1522
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef33de7984fd7eeeabd3876121a26cba
https://doi.org/10.1002/nme.1620330710
https://doi.org/10.1002/nme.1620330710
Autor:
R. J. Conant, B. W. Dandekar
Publikováno v:
International Journal for Numerical Methods in Engineering. 33:1523-1535
A boundary integral equation formulation for the analysis of two-dimensional elastic contact problems with friction is developed. In this formulation, the contact equations are written explicitly with both tractions and displacements retained as unkn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a468feda173e20b4baf45fcf31e52cb8
https://doi.org/10.1002/nme.1620330711
https://doi.org/10.1002/nme.1620330711
Autor:
R. J. Conant, Jil Hallenberg, Jason Ballensky, Connie L. Nelson, Gary W. Bohannan, Chip Lukes, Joe Wehri, Erica R. McKenzie, V. Hugo Schmidt, Ashley Childs, Bryan Tikalsky
Publikováno v:
Smart Structures and Materials 2000: Electroactive Polymer Actuators and Devices (EAPAD).
We present results from development and testing of lightweight actuators made of the piezoelectric polymer PVDF. The prototype being developed is intended for microgravity applications in space and has been tested aboard NASA's Reduced Gravity Platfo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f33e775b43a307c485ae44219ca7c2fb
https://doi.org/10.1117/12.387792
https://doi.org/10.1117/12.387792
Autor:
R. J. Conant, S. E. Garwick
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461377252
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::909838ee4222675a50e14580b8f0ae6b
https://doi.org/10.1007/978-1-4615-5947-4_65
https://doi.org/10.1007/978-1-4615-5947-4_65
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461358190
The noncontacting nature of laser-based ultrasonic measurement has made it attractive in many applications. While most of the applications thus far involve solid samples, molten metals encountered in some stages of metal processing appear well suited
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1138caf35ece1068cccc06b2d06104b4
https://doi.org/10.1007/978-1-4615-1987-4_61
https://doi.org/10.1007/978-1-4615-1987-4_61
Autor:
R. J. Conant, K. L. Telschow
Publikováno v:
The Journal of the Acoustical Society of America. 89:2463-2463
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3b6cb358bda840f8720b929cd3c415b
https://doi.org/10.1121/1.400963
https://doi.org/10.1121/1.400963
Autor:
R. J. Conant
Publikováno v:
Quarterly of Applied Mathematics. 44:425-430
The function appearing in the title is examined to determine the number of roots and their general location. It is found that the roots appear in complex conjugate pairs, that the number of roots depends on n n , and that, with the exception of a pos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c38d218f60e0d534622ce92a6d8f85e7
https://doi.org/10.1090/qam/860895
https://doi.org/10.1090/qam/860895
Autor:
R. J. Conant, K. L. Telschow
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461280972
The thermoelastic laser ultrasonic source depends on the optical absorption of energy at the sample surface to produce a volumetric expansion. This paper presents the results of calculations and measurements on the effects of optical penetration of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5907ab38a870b32da4496ab48b913a26
https://doi.org/10.1007/978-1-4613-0817-1_62
https://doi.org/10.1007/978-1-4613-0817-1_62