Title :
Inverse calculation method for piezocomposite materials characterization
Author :
Férin, G. ; Certon, D. ; Guyonvarch, J. ; Félix, N.
Author_Institution :
VERMON, Tours, France
Abstract :
The determination of elastic, dielectric and piezoelectric homogenised constants of piezocomposite materials is required for the optimisation and the performance evaluation of the material. This paper presents an inverse method enabling the determination of the effective electro-acoustic tensor |C, e, ε|. Data are displacement field measurements. The model used for the forward problem is presented. The calibration of the inversion process is carried out. A piezocomposite plate device is fully characterized. The determined parameters from the inverse problem are validated using other data, the acoustic transmission coefficient of the plate.
Keywords :
acoustic wave transmission; composite materials; elastic constants; inverse problems; permittivity; piezoelectric devices; piezoelectric materials; acoustic transmission coefficient; dielectric constants; displacement field measurement; effective electro-acoustic tensor; elastic constants; forward problem model; inverse calculation method; inverse problem; inversion process calibration; material optimisation; piezocomposite materials characterization; piezocomposite plate device; piezoelectric homogenised constants; ultrasound imaging probes; Acoustic imaging; Dielectric constant; Dielectric losses; Dielectric materials; Displacement measurement; Inverse problems; Optical films; Piezoelectric materials; Probes; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 2004 IEEE
Print_ISBN :
0-7803-8412-1
DOI :
10.1109/ULTSYM.2004.1417805
