Paper number 1329

DETERMINATION OF ELASTIC PROPERTIES BY AN ULTRASONIC TECHNIQUE

S. Baste

Université Bordeaux 1, Laboratoire de Mécanique Physique, CNRS UPRES A 5469
351, Cours de la Libération, 33405-TALENCE Cedex, France

Summary

The main purpose of this paper is to show the reliability and the accuracy of ultrasonic elastic behaviour characterisation. Firstly, the main principles of ultrasonic NDE, i.e., an inverse problem which involves an optimal recovery of the complete stiffness matrix from time of flight measurements, is briefly reviewed. The numerical processing of the wave velocities data, which enables the identification of all the stiffness coefficients of an orthorhombic material, is described. The reliability and accuracy of the identification are discussed.

Keywords

ultrasonic, characterisation, anisotropy.