The objective of this work was to study the static bending variation of Eucalyptus grandis wood along the radial plane at four different ages (10 _ 14 20 and 25 years), from commercial stands. The samples were removed from a diametrical board on each of sixteen trees (four from each age); taken from four equidistant positions (0, 33, 66 and 100%), in the pith-to-bark direction, with six replicates per position. It was found that the elasticity modulus (MOE) showed mean values of 129.230 kgf/cm², and the rupture modulus (MOR) showed mean values of 854 kgf/cm², both showing to be positively correlated with age and radial position in the pith-to-bark direction. The greatest values were obtained from twenty-year-old wood and located near the bark.
Eucalyptus grandis; static bending; age and radial variation
