Title :
Ultrasonic characterization of composite materials: a stochastic approach
Author :
Derouiche, Z. ; Delebarre, C. ; Rouvaen, J.M. ; Bruneel, C.
fDate :
Oct. 31 1994-Nov. 3 1994
Abstract :
A stochastic approach is considered here in order to quantitatively characterize composite materials using an identification method. The distribution of inclusions inside the matrix medium is represented through a well fitted probabilistic law for the spacing between scatterers. The identification process consists in the determination of the relevant mathematical parameters, which give access to the local scatterer concentration. The theoretical results derived from our model are compared with the experimental findings for a collection of samples of carbon epoxy and metal matrix composites, using high frequency (between 10 and 100 MHz) ultrasonic waves
Keywords :
carbon fibre reinforced plastics; fibre reinforced composites; stochastic processes; ultrasonic materials testing; ultrasonic scattering; ultrasonic velocity; 10 to 100 MHz; C; C fibre reinforced epoxy resin; carbon epoxy composites; composite materials; high frequency ultrasonic waves; identification method; inclusion distribution; local scatterer concentration; mathematical parameters; matrix medium; metal matrix composites; probabilistic law; scatterers; stochastic approach; ultrasonic characterization; Acoustic scattering; Acoustic testing; Nondestructive testing; Stochastic processes;
Conference_Titel :
Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE
Conference_Location :
Cannes, France
Print_ISBN :
0-7803-2012-3
DOI :
10.1109/ULTSYM.1994.401849
