Static and kinetic friction coefficients of Scots pine (Pinus sylvestris L.), parallel and perpendicular to grain direction

  • Aira J
  • Arriaga F
  • Íñiguez-González G
  • et al.
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Abstract

© 2014 CSIC.In this study the static (μe) and kinetic (μd) coefficients of friction were obtained for Pinus sylvestis L. sawn timber of Spanish origin. Friction between transverse surfaces sliding perpendicular to the grain (tangential direction) and radial surfaces sliding parallel to the grain was analyzed. A specifically designed device was used for tests, which makes it possible to apply contact pressure and measure displacements and applied loads simultaneously. Coefficients of friction between transverse surfaces (μe=0,24; μd=0,17) were about twice of the coefficients of friction between radial surfaces (μe=0,12; μd=0,08). Furthermore, these values are located within normal values of those commonly reported for softwood. The results are considered preliminary due to the small number of specimens.

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Aira, J. R., Arriaga, F., Íñiguez-González, G., & Crespo, J. (2014). Static and kinetic friction coefficients of Scots pine (Pinus sylvestris L.), parallel and perpendicular to grain direction. Materiales de Construcción, 64(315), e030. https://doi.org/10.3989/mc.2014.03913

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