Determinação experimental das constantes elásticas da madeira de Eucalyptus grandis e chapas de OSB

Abstract

Due it is an ecologically correct material with great potential to be used structurally, wood has been gaining more and more space in the Brazilian civil construction market. However, the lack of knowledge of its properties, combined with the complexity of its behavior makes its correct sizing harder. Therefore, it becomes fundamental to know the properties of the element used in the project for its correct aplication. In addition, one of the current trends is the use of numerical models to describe the structural behavior of the analyzed element, making the numerical simulations more practical and less expensive than the experimental tests. However, for these simulations to be reliable, they must be fed with the physical properties of the material being studied. Thus, this work aims at characterize Eucalyptus Grandis and OSB boards through laboratory tests foreseen in national and international standards. The experimental results obtained from the tests showed conformity with the values of the bibliography. In addition, the relations between elastic constants for solid wood were close to those found by other researchers. Finally, the specimen model for the determination of the shear modulus was shown to be simple in comparison to other models, presenting satisfactory results.