Experimental and numerical analysis of semi-destructive device for in situ assessment of wood properties in compression parallel to grain

0467693 - ÚTAM 2018 RIV DE eng J - Článek v odborném periodiku
Kloiber, Michal - Kunecký, Jiří - Drdácký, Miloš - Tippner, J. - Sebera, V.
Experimental and numerical analysis of semi-destructive device for in situ assessment of wood properties in compression parallel to grain.
Wood Science and Technology. Roč. 51, č. 2 (2017), s. 345-356. ISSN 0043-7719. E-ISSN 1432-5225
Grant CEP: GA MK(CZ) DG16P02M026; GA MŠMT(CZ) LO1219
Klíčová slova: finite element method * experimental and numerical analysis * historical construction * mechanical properties of wood
Obor OECD: Paper and wood
Impakt faktor: 1.706, rok: 2017
https://doi.org/10.1007/s00226-016-0881-6

A reconstruction of historical timber structures requires precise diagnostics of mechanical properties of particular structural members, which would subsequently underlie a reliable plan of the reconstruction. Mechanical properties of wood are determined most exactly using destructive techniques, but often they cannot be used in historical constructions. This calls for using nondestructive or semi-destructive techniques that are still reasonably exact, not too invasive and can be profitably used in situ. This work examines a new nondestructive diagnostic tool that enables to determine strength and stiffness parameters of wood parallel to the grain in situ. The function of the instrument was verified using standard compression tests parallel to the grain that correlated with the instrument well (r = 0.92). Complicated stress state in the drilled hole was examined by contact finite element analysis and revealed high contribution of longitudinal elastic moduli in force measurement (r = 0.96).
Trvalý link: http://hdl.handle.net/11104/0269037