Flexão dinâmica da madeira de Corymbia citriodora (Hook.) K.D. Hill & L.A.S. Johnson submersa em água e seca ao ar livre

• Autor(a) principal: Guilherme Valcorte
• Data de Publicação: 2021
• Outros Autores: Samara Magdalene Vieira Nunes, Talita Baldin, Roberta Rodrigues Roubuste, Laura Hoffmann de Oliveira, Maiara Talgatti
• Tipo de documento: Artigo de conferência
• Idioma: por
• Título da fonte: Repositório Institucional da UFMG
• Texto Completo: http://hdl.handle.net/1843/53002
• topic: Madeira - Qualidade; Madeira - Pesquisa; Madeira - Testes

Knowledge about the technological properties of wood makes it possible to obtain parameters that help determine the proper use of this material. In this context, an important property to be determined is the ability of wood to resist impacts. Therefore, this study aimed to determine the impact strength of Corymbia citriodora (Hook.) K.D. Hill & L.A.S. Johnson submerged in water and dried outdoors. For this purpose, 20 samples of each treatment were used, with dimensions of 2 x 2 x 30 cm, respectively, width, thickness and length. These were subjected in their central region to the impact of the Charpy pendulum on the tangential plane of the growth rings. To evaluate the behavior of the impact strength of wood from different treatments, the data were subjected to analysis of variance and detecting the existence of at least one difference between treatments, the means were compared by Tukey’s test at the level of 5 % of probability. Open-air dried wood resulted in the highest averages for the evaluated parameters, with an impact resistance value of 92.51 KJ.m-2, while saturated wood presented a value of 67.31 KJ.m-2. The results found showed that Corymbia citriodora wood was more resistant to impact when dried outdoors.