Print Email Facebook Twitter Time-of-flight modeling of transversal ultrasonic scan of wood Title Time-of-flight modeling of transversal ultrasonic scan of wood Author Yaitskova, N. Van de Kuilen, J.W.G. Faculty Civil Engineering and Geosciences Department Structural Engineering Date 2014-12-31 Abstract Time-of-flight is a time for an ultrasonic pulse to cross a sample. It contains valuable information about the mechanical properties of a material. For the ultrasonic pulse propagating in wood perpendicular to the grain the relation between the time-of-flight and the elastic constants is rather complex due to the strong anisotropicity of wood. With the help of some assumptions this relation can be established from the elastic theory. The analytical calculation results in a function which represents a change of time-offlight when the direction of propagation shifts from the radial to the tangential direction while scanning a board crosswise. The function takes into account the location of the pith and the geometry of the growth rings. The measurement performed on a sample of European spruce confirms the theoretical prediction. To reference this document use: http://resolver.tudelft.nl/uuid:53c326ab-538d-49ff-b781-a363e6a8b3c3 DOI https://doi.org/10.1121/1.4873519 Publisher Acoustical Society of America Embargo date 2015-05-31 ISSN 0001-4966 Source http://scitation.aip.org/content/asa/journal/jasa/135/6/10.1121/1.4873519 Source Journal of the Acoustical Society of America, 135 (6), 2014 Part of collection Institutional Repository Document type journal article Rights (c) 2014 Acoustical Society of America Files PDF 310537.pdf 521.22 KB Close viewer /islandora/object/uuid:53c326ab-538d-49ff-b781-a363e6a8b3c3/datastream/OBJ/view