Publicação on-line; 40 ref.; 2 tables; 6 illus.; Summary (En)

ABSTRACT

The objectives of this study were to evaluate the relationship between the density and the EW
(modulus of elasticity) values obtained by two non-destructive methods: the accuracy of an
expeditious method using a graduated ruler; and the homogenization of elasticity between the
methods for glulam elements. In the analysis, displacements were measured with a graduated
ruler and an automatic data acquisition system of 136 glulam pieces with corresponding structural
size was used. The methods were evaluated by correlations, and the homogenization of elasticity
was evaluated by the Tukey test. We found that density does not influence the EW values obtained
by the studied methods, and it is concluded that an expeditious method using a graduated ruler
can be used to determine EW by applying a corrected equation.

Keywords: planted forest timber, paricá, modulus of elasticity, glulam.