Now showing items 1-10 of 171
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 ...
Falling sheet envelope method for non-destructive testing time-dependent signals
(PERGAMON-ELSEVIER SCIENCE LTD, 2011)
In this work, an algorithm to compute the envelope of non-destructive testing (NDT) signals is proposed. This method allows increasing the speed and reducing the memory in extensive data processing. Also, this procedure ...
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 ...
NONDESTRUCTIVE EVALUATION OF WOOD USING ULTRASONIC TECHNIQUE
(Universidad del Bío-Bío, 2002)
Effect of coupling media on velocity and attenuation of ultrasonic waves in Brazilian wood
(Springer TokyoTokyoJapão, 2011)
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 ...
Stress evaluation of railroad forged wheels by ultrasonic testing
(Amer Soc Testing MaterialsW ConshohockenEUA, 2007)
Relation between magnetic Barkhausen noise and hardness for jominy quench tests in SAE 4140 and 6150 steels
(New York, 2013-01-30)
he nondestructive Magnetic Barkhausen Noise (MBN) technique was applied for the evaluation of SAE 4140 and SAE 6150 steels after a Jominy end-quench test. Microstructures were also characterized by SEM (Scanning Electron ...