Publications
104 results found
Ribichini R, Cegla F, Nagy PB, et al., 2010, MODELLING OF ELECTROMAGNETIC ACOUSTIC TRANSDUCERS OPERATING ON FERROMAGNETIC MATERIALS, 36th Annual Review of Progress in Quantitative Nondestructive Evaluation, Publisher: AMER INST PHYSICS, Pages: 964-971, ISSN: 0094-243X
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- Citations: 1
Cegla FB, Davies JO, Jarvis A, 2010, Ultrasonic Crack Monitoring at High Temperatures Using SH Waves (>500°C), 5th European Workshop on Structural Health Monitoring, Publisher: DESTECH PUBLICATIONS, INC, Pages: 1217-1222
Clarke T, Cegla F, Cawley P, 2009, Sparse-array guided wave SHM system applied to a real structure without temperature control, Pages: 979-986
A sparse array SHM system based on guided waves was applied to the door of a commercial shipping container. The door comprised a corrugated steel panel approximately 2.4 m by 2.4 m surrounded by a box beam frame and testing was performed in a non-laboratory environment. A sparse array with 9 transducers was attached to the structure and signals from the undamaged structure were recorded at periodic intervals over a three week period and the resulting signal database was used for temperature compensation of subsequent signals. Defects in the form of holes with 5 and 1 Omm-diameter were introduced in the structure and signals were taken for each condition. Direct analysis of subtracted signals allowed understanding of the defect detection capability of the system. Comparison of signals transmitted between different transducer pairs before and after damage was used to give an initial indication of defect detectability. Signals from all combinations of transducers were then used in an imaging algorithm and good localization of holes with 5mm diameter or above was possible in the 2.4m square structure.
Cegla FB, 2008, Energy concentration at the center of large aspect ratio rectangular waveguides at high frequencies, JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, Vol: 123, Pages: 4218-4226, ISSN: 0001-4966
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- Citations: 52
Cegla FB, Rohde A, Veidt M, 2008, Analytical prediction and experimental measurement for mode conversion and scattering of plate waves at non-symmetric circular blind holes in isotropic plates, WAVE MOTION, Vol: 45, Pages: 162-177, ISSN: 0165-2125
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- Citations: 69
Sherry AH, Carley AF, Cegla FB, et al., 2007, The remote monitoring and reliable prediction of materials performance in nuclear applications, Nuclear Future, Vol: 3, Pages: 230-240
Cegla FB, Veidt M, 2007, Prediction and direct measurement of scattered plate-wave fields using so to A0 mode conversion at non-symmetric circular inhomogeneities, 33rd Annual Review of Progress in Quantitative Nondestructive Evaluation, Publisher: AMER INST PHYSICS, Pages: 63-70, ISSN: 0094-243X
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- Citations: 2
Cegla FB, Cawley P, Lowe MJS, 2006, Fluid bulk velocity and attenuation measurements in non-Newtonian liquids using a dipstick sensor, MEASUREMENT SCIENCE AND TECHNOLOGY, Vol: 17, Pages: 264-274, ISSN: 0957-0233
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- Citations: 10
Cegla FB, Cawley P, Lowe MJS, 2006, Measurement of bulk velocity and attenuation in fluids and particle suspensions using the quasi-Scholte mode, Publisher: American Institute of Physics, Pages: 1245-1252, ISSN: 0094-243X
Cegla FB, Cawley P, Lowe MJS, 2006, Measurement of bulk velocity and attenuation in fluids and particle suspensions using the quasi-Scholte mode, Review of Progress in Quantitative Nondestructive Evaluation, Vols 25A and 25B, Vol: 820, Pages: 1245-1252, ISSN: 0094-243X
Cegla FB, Cawley P, Lowe MJS, 2005, Material property measurement using the quasi-Scholte mode - A waveguide sensor, JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, Vol: 117, Pages: 1098-1107, ISSN: 0001-4966
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- Citations: 62
Cegla FB, Cawley P, Lowe MJS, 2005, Fluid characterization using the quasi-Scholte mode, Melville, 31st annual review of progress in quantitative nondestructive evaluation, Golden, CO, 25 - 30 July 2004, Publisher: Amer Inst Physics, Pages: 1584-1591
Cegla FB, Cawley P, Lowe MJS, 2005, Fluid characterization using the quasi-Scholte mode, Melville, 31st annual review of progress in quantitative nondestructive evaluation, Golden, CO, 25 - 30 July 2004, Publisher: Amer Inst Physics, Pages: 1584-1591
Pu SH, Cegla F, Drozdz M, et al., 2004, Monitoring the setting and early hardening of concrete using an ultrasonic waveguide, INSIGHT, Vol: 46, Pages: 350-354, ISSN: 1354-2575
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- Citations: 18
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