Abstract
Particle image velocimetry technique and ultrasound method to obtain the modulus of elasticity of Bertholletia excelsa wood
Highlights
Universidad del Bío-BíoConventional testing techniques used to analyze physical and mechanical properties of materials, such as the modulus of elasticity, usually require high processing time, specific equipment, a large number of samples and cause permanent damage to the material tested, making it unusable
The Particle Image Velocimetry technique originated from the gaseous materials study field (Raffel et al 2018)
The technique was adapted to study the movement of solid materials through the analysis of images captured from samples marked with random points, at first using a laser (Braga-Júnior et al 2015) and, more recently, using ink particles drawn on the sample surface (Pereira et al 2019, Novosel et al 2021)
Summary
Universidad del Bío-BíoConventional testing techniques used to analyze physical and mechanical properties of materials, such as the modulus of elasticity, usually require high processing time, specific equipment, a large number of samples and cause permanent damage to the material tested, making it unusable. Non-destructive testing techniques become an option to determine the properties of materials in-service, usually requiring shorter application time and cost when compared to destructive tests (Pereira et al 2019, Zahedi et al 2020). The Particle Image Velocimetry technique originated from the gaseous materials study field (Raffel et al 2018). The time gap between photos is predefined and must contemplate the changes that occur in the material during the load application. These images are processed in a computational algorithm that calculates the displacement that occurred on the surface of the studied object (Pereira et al 2019)
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