Numerical Simulations of Ultrasonic Non Destructive Techniques of Masonry Buildings

S. Carcangiu[1], B. Cannas[1], M. Usai[1], and G. Concu[2]
[1]Department of Electric and Electronic Engineering, Cagliari, Italy
[2]Department of Structural and Infrastructural Engineering and Geomatics, Cagliari, Italy
Publié en 2011

An experimental program has been developed, with the purpose of evaluating the reliability in building diagnosis and characterization of an integrated analysis of several parameters, associated with acoustic waves propagating through the material. The Direct Transmission Technique has been applied.

In this paper we developed a numerical model using the Transient Acoustics-Piezoelectric Interaction application mode of COMSOL. The analysis has been carried out on a model of trachite stone masonry with an inside cavity. The time travels associated with acoustic waves propagating through some sections of the considered models have been analyzed in order to detect the presence of the central cavity. The comparison of the obtained results with those supplied by experimental tests has been performed.

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