Possible sources of acoustic emission during static bending test of wood specimens

Autor: David Varner, Michal Černý, Miroslav Varner, Martin Fajman
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, Vol 60, Iss 3, Pp 199-206 (2012)
Druh dokumentu: article
ISSN: 1211-8516
2464-8310
DOI: 10.11118/actaun201260030199
Popis: The paper is dedicated to identification of sources of acoustic emission generated during static bending test of wood specimen. Information on wood structure, wood failure behavior and computer-generated finite element method (FEM) simulation of static bending test were used to localize and estimate power of individual acoustic emission sources. Significant acoustic emission sources are expected in the specimen in two areas: under the upper central support (during the entire bending test run) and in the tension portion of the specimen at the centre of lower baseline (at the fracture/destruction time). Strong acoustic emission sources were registered in tension portion of the specimen in direct connection with final fracture of specimen.
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