Author : Saimir Beqo, Entela Lato, Hektor Thoma and Doklea Quku

This study regards the determinations of Brinnell hardness on Albanian beach (Fagus sylvatica L). The results showed that the Brinell-hardness of beech wood is 66 N/mm2 30.3 N/mm2 and 33.4 N/mm2 respectively for longitudinal, radial and tangential direction. Little research was carried out to compare of the Brinell-hardness of the normal and the red-hearted beech wood and it is shown that the hardness in the tangential section of the red-hearted wood are significantly higher than normal wood (+11.8%). On the radial section differences were smaller (+8.3%). The hardness values for samples of the first group (7-10 growth rings) tends to be higher (+16%) than the hardness of second group (11-15 growth rings). This is because the wood samples with small numbers of growth rings have the greater proportions of summer wood and the greater density of wood.

Keywords: Brinnell hardness, Albanian beech wood, statistical parameters

Article published in International Journal of Current Engineering and Technology, Vol.5, No.6 (Dec-2015)