SHEAR STRENGTH OF PINE WOOD BONDED JOINTS WITH DIFFERENT ANGLES OBTAINED USING COMPRESSION AND TORSIONAL TESTING METHODS

Authors

  • Victor Hugo Lazzaretti Padilha Universidade Estadual do Oeste do Paraná, Programa de Pós-Graduação em Engenharia de Energia na Agricultura, Cascavel, PR - Brasil
  • Alfredo Petrauski Universidade Estadual do Oeste do Paraná, Centro de Ciências Exatas e Tecnológicas, Cascavel, PR - Brasil
  • Alessandra dos Santos Universidade Estadual do Oeste do Paraná, Centro de Ciências Exatas e Tecnológicas, Cascavel, PR - Brasil
  • Desirè Coraça Possa Universidade Estadual do Oeste do Paraná, Programa de Pós-Graduação em Engenharia de Energia na Agricultura, Cascavel, PR - Brasil
  • Sandra Maria Ferreira Couri Petrauski Universidade Estadual do Oeste do Paraná, Centro de Ciências Exatas e Tecnológicas, Cascavel, PR - Brasil
  • Gustavo Savaris Universidade Tecnológica Federal do Paraná, Toledo, PR - Brasil

Keywords:

Adhesion, Mechanical performance, Reforested wood

Abstract

Glued Laminated Timber technology allows the construction of wooden structural components bonded with adhesive. This technology enables the creation of large-scale structures, with technological control over the material, and in a competitive industrial system. Focusing on the structural application of wood, the present study assessed the strength of bonded joints with different angles between the fibers of Pinus sp. wood, joined with a two-component polyurethane adhesive based on vegetable oils. The bonded joints were fabricated with angles of 0°, 10°, 20°, 30°, 45°, 60°, 70°, 80°, and 90°, and were evaluated for shear strength under compression and torsion. When regression analysis was performed, shear compression values showed compliance with Hankinson’s equation, with an R2 value close to 0.76. However, shear torsion results yielded R2 values near 0.17. Thus, Hankinson’s equation was unsuitable as an estimator for torsional shear strength values. The specimens showed a different mechanical response to shear when tested in compression compared to those tested in torsion.

Keywords: Adhesion; Mechanical performance; Reforested wood

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Published

2023-12-04

How to Cite

Padilha, V. H. L., Petrauski, A., dos Santos, A., Possa, D. C., Petrauski, S. M. F. C., & Savaris, G. (2023). SHEAR STRENGTH OF PINE WOOD BONDED JOINTS WITH DIFFERENT ANGLES OBTAINED USING COMPRESSION AND TORSIONAL TESTING METHODS. Revista Árvore, 47, https://doi.org/10.1590/1806–908820230000027. Retrieved from https://revistaarvore.ufv.br/rarv/article/view/263588

Issue

Revista Árvore, Viçosa-MG, v.47, 2023

Section

Wood Technology and Utilization of Forest Products

License

All authors agreed to submit the work to Revista Árvore and granted the exclusive license to publish the article. The authors affirm that it is an original work and has not been previously published elsewhere. The scientific content and opinions expressed in the article are the sole responsibility of the authors and reflect their opinions, not necessarily representing the opinions of the editorial board of Revista Árvore or of the Society of Forest Investigations (SIF).

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