[EN] In this paper, the study of frequency-dependent ultrasonic attenuation in strongly heterogeneous cementitious materials is addressed. To accurately determine the attenuation over a wide frequency range, it is necessary ...
Vázquez, S.; Gosálbez Castillo, Jorge; Wright, W. M. D.; Gallardo, C.; Bosch Roig, Ignacio; CARRIÓN GARCÍA, ALICIA(Acoustical Society of America, 2019-09-06)
Air-coupled non-destructive testing has become very valuable because eliminates the use of liquid couplants and enables a contactless fast inspection of structures. Multimodal leaky Lamb waves can be excited and sensed ...