Analysis of Elasticity in Woods Submitted to the Static Bending Test Using the Particle Image Velocimetry (Piv) Technique

Displacement Measurement in Sawn Wood and Wood Panel Beams Using Particle Image Velocimetry

“…After the images were processed in the PIV algorithm, graphs were obtained with the deformations referring to the sites chosen for analysis (Pereira et al, 2018). In this case, the chosen regions were those close to the three positioned dial indicators (left, center and right).…”

“…This is an optical technique that generates results from sequential image analysis. The PIV technique was originally used in the field of fluids and gases (Bangalee et al, 2013;Xu et al, 2017) and in recent years it has also been applied to measurements of solid bodies (Baba and Peth, 2012;Braga Jr. et al, 2015;Magalhães et al, 2015;Pereira, 2014;Souza et al, 2014;Pereira et al, 2018).…”

Particle Image Velocimetry for Estimating the Young’s Modulus of Wood Specimens

“…Particle image velocimetry allows the deformation of the wood to be determined considering its heterogeneity and the location in the image to be monitored can be chosen according to the criteria of interest. When adapted from studies in fluids and gases to the study of solid materials, the PIV technique needs other types of particles as markers (Pereira et al, 2018). Magalhães et al (2015) monitored deformations in a steel beam (ASTM A36 cantilever type).…”

“…The authors developed the vector map of the deformation of the wood submitted to the load in the static bending test using the universal testing machine and followed the deformation in the elastic phase, predicting the disruption in a qualitative way. Pereira et al (2018) proposed the use of ink dots for random marking of particles on the face of the static bending test specimens. These particles were photographed during the mechanical test.…”

“…The author also proposed an algorithm to analyze the successive images taking into consideration parameters programmable according to the image to be analyzed. This new methodology allows the algorithm to be fed with assay information and to provide the deformation occurred (Pereira, 2018). Pereira et al (2019) have successfully applied PIV on specimens of Pinus oocarpa and Eucalyptus grandis wood and also in plywood panels, laminated veneer lumber and oriented strand boards.…”