One of the main wood mechanical properties is elasticity. By evolving nondestructive timber measurement methods, we can obtain information about growing trees wood mechanical and physical properties. The dynamic modulus of elasticity is obtained by calculating two parameters: ultrasound velocity and density of the wood. In this paper, the sound propagation speed of the wood was measured with an acoustic tomography Arbotom 3D and the density is determined by the device Lignostation. The study was conducted from 7 trees have been cut-sheet lower, middle and apical parts. After cutting works we get retrieved 21 parts. In these parts was measured sound propagation speed in 3 different heights. Density was measured at the ends of parts. All indicators were converted to 12% moisture content. After measuring works according to a formula was calculated dynamic modulus of elasticity.
Keywords: dynamic MOE, wood density, ultrasonic velocity
Authors
Šilinskas B.
Lithuanian Research Centre for Agriculture and Forestry Institute of Forestry
Škėma M.
Lithuanian Research Centre for Agriculture and Forestry Institute of Forestry
Aleinikovas M.
Lithuanian Research Centre for Agriculture and Forestry Institute of Forestry
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