Caracterização das propriedades físico mecânicas das madeiras Mezilaurus itauba e Qualea albiflora

Abstract

The present work aims to make a physical and mechanical analysis of the woods of Itaúba - Mezilaurus itauba and Cambará - Qualea albiflora, in order to obtain a more accurate characterization for the woods of the region. The experiments were carried out at the Wood Technology Laboratory of the Federal University of Mato Grosso - UFMT. The two forest species used in the study were taken from Porto dos Gaúchos - MT. The execution of the tests were based on the standards NBR 7190, ASTM D 5764 and BS EM 383-2007. For the execution of the mechanical tests the universal testing machine WDW 300E was used. The values related to physical (humidity and density) and mechanical properties (parallel fiber compressive strength and elastic modulus, perpendicular compressive strength and elastic modulus, shear strength, flexural strength and modulus of elasticity) of the analyzed woods and a statistical analysis was performed for inferences related to the obtained data. Itaúba showed to be more resistant than Cambará in most tests, but in the tests where Cambará had a higher resistance, they showed no significant difference from the values obtained by Itaúba.