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Non‐destructive testing of porous media by means of sound wave analysis
Author(s) -
Albers Bettina
Publication year - 2015
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201510252
Subject(s) - porous medium , sound (geography) , acoustics , porosity , pervious concrete , geotechnical engineering , nondestructive testing , materials science , surface wave , forensic engineering , engineering , composite material , physics , telecommunications , cement , quantum mechanics
The theoretical investigation of sound waves in porous materials is motivated by the possible construction of non‐destructive testing methods. Here, geotechnical applications are of interest where low frequencies from zero to 100 Hz occur but also systems with higher frequency ranges may be tested non‐invasively. Examples are concrete and other construction materials, road surfaces and pavements (some MHz), biological materials like bones and soft tissues, e.g. the surface of the heart (up to 3 MHz) right up to surface coatings by nanomaterials (approximately 100 MHz). (© 2015 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)