Ultimate bending strength of massive and laminated beech wood below the influence of cyclic loading

• Autorzy: Gaff Milan
• Języki publikacji: EN

Abstrakty

EN

In this article we deal with investigation a influence of cyclic loading massive and laminated beech wood at various material thicknesses on ultimate bending strength (ultimate flexural strength)„ σp “, during bending in radial direction. For identification of monitored characteristic we used static bending test with three-point loading. Monitored characteristic was detected on testing samples which weren’t cyclic loaded and our results were compared with other results obtained from samples which were cyclic loaded. The results of this work show that influence of cyclic loading on values of ultimate bending strength for massive and laminated wood isn’t significant. Thickness influence is significant factor at both monitored material types; the results show that thickness increasing causes the decreasing values of ultimate bending strength. We think that ultimate bending strength decreasing isn’t caused by material thickness but different material lengths. The rising of material length is mostly represented by inhomogeneous wood properties.

Słowa kluczowe

EN

cyclic loading; laminated wood; ultimate bending strength; modulus of elasticity

• Wydawca: Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
• Czasopismo: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
• Rocznik: 2012
• Tom: No. 78
• Strony: 40--46
• Opis fizyczny: Bibliogr. 5 poz.

Twórcy

autor

Gaff Milan

• Technical University in Zvolen, Faculty of Wood Science and Technology, Department of Furniture and Wood Products

Bibliografia

• 1.GAFF, M., ZEMIAR,J.: Vplyv vlhkosti dreva a ohrevu lisovacieho nástroja na tvarovú stabilitu a kvalitu nerovnomerne zlisovanej plochy osikového dreva. In: Trieskové a beztrieskové obrábanie dreva 2008 : V. medzinárodná vedecká konferencia. - Zvolen : Technická univerzita vo Zvolene, 2008. s. 315-320- ISBN 978-80-228-1913-8
• 2.GÁBORÍK, J. – DUDAS, J.: The change of properties of aspen wood by mechanical trement – by pressing. (Zmena vlastností osikového dreva mechanickou úpravou - lisovaním) In.: Roczniky Akademii Rolniczej w Poznaniu -Technologia drewna. Poznaň 2006. http://www.ejpau.media.pl/volume9/issue3/art-15.html
• 3.GÁBORÍK, J. – DUDAS, J.: The bending properties of aspen wood. (Ohybové vlastnosti osikového dreva)In.: Annals of Warsaw Agricultural University. Forestry and Wood Technology. No 65. Warsawa, 2008, s. 55 – 60. ISSN 1898-5912
• 4.DUDAS, J.: Parametre kvality dreva určujúce jeho finálne použitie / Stanislav Kurjatko ... [et al.] ; rec. Ivan Makovíny, Štefan Šteller. - Zvolen : Technická univerzita vo Zvolene, 2010. - 352 s. : Fig., tab. - APVV-0282-06. - ISBN 978-80-228-2095-0
• 5.GÁBORÍK, J.: Parametre kvality dreva určujúce jeho finálne použitie / Stanislav Kurjatko ... [et al.] ; rec. Ivan Makovíny, Štefan Šteller. - Zvolen : Technická univerzita vo Zvolene, 2010. - 352 s. : Fig., tab. - APVV-0282-06. - ISBN 978-80-228-2095-0