Now showing items 1-10 of 65
Classification of lumber of Eucalyptus using non-destructive tests
Classification and standardization of the sawn wood is a usual activity, developed by countries that come as great consumers of this material. Brazil does not practice the classification of sawn wood. This work had the ...
Study of Brazilian commercial Oriented Strand Board panels using stress wave
Today lumber industry has shown a clearly evident trend towards wood based panels' production; and, among them, Oriented Strand Board (OSB) has become more and more prominent. Nondestructive Testing (NDT) such as stress ...
Sparse arrays and image compounding techniques for non-destructive testing using guided acoustic waves
Piezoelectric array transducers applications are becoming usual in the ultrasonic non-destructive testing area. However, the number of elements can increase the system complexity, due to the necessity of multichannel ...
Investigations into the use of the finite element method and artificial neural networks in the non-destructive analysis of metallic tubes
This work presents an investigation into the use of the finite element method and artificial neural networks in the identification of defects in industrial plants metallic tubes, due to the aggressive actions of the fluids ...
Hybridization effect on the mechanical properties of curaua/glass fiber composites
The aim of this paper was to evaluate the effect of hybridizing glass and curaua fibers on the mechanical properties of their composites. These composites were produced by hot compression molding, with distinct overall ...
Avaliação da distribuição da densidade em MDF a partir da técnica da onda de ultra-som
The goal of this research was to determine the density distribution in medium density fiberboard (MDF), manufactured with polyurethane derived from castor oil using, ultrasonic wave technique. The equipment used in this ...