Investigation of ultrasonic phased array inspection of a planar crack using finite element method

Mostafa Mardani Kharat , Sina Sodagar , G. R. Rashed

The characteristics of the ultrasonic field radiated by a linear phased array transducer and the echo information of the inspected area are the main basis of designing a phased array inspection system. In this paper, a theoretical investigation is accomplished on the ultrasonic wave diffraction using the ultrasonic phased array method for evaluation of the planar cracks. For this purpose, the ultrasonic wave field resulting from a phased array transducer and its interaction with the planar crack is modelled using finite element method. The modelling results are employed to study the parameters affecting on the behaviour of the reflected and diffracted waves. To investigate reliability and efficacy of the proposed approach, phased array numerical results are compared with the experimental results.

Mots clés: Ultrasonic; Phased Array; Finite Element Method

Domaines: Acoustique [physics.class-ph]

Mostafa Mardani Kharat, Sina Sodagar, G. R. Rashed. Investigation of ultrasonic phased array inspection of a planar crack using finite element method. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00811321⟩