Compressive strength parallel to grain of earlywood and latewood of yellow pine
DOI:
https://doi.org/10.4067/s0718-221x2021000100457Keywords:
Anatomy, compressive strength, earlywood, fibre, latewood, Pinus ponderosaAbstract
The compressive strength parallel to grain of earlywood and latewood from the yellow pine sapwood and heartwood areas was examined in the study. The structure of the basic structural elements of wood - tracheids, which conduct water and/or perform the mechanical function - was also characterized. The compressive strength parallel to grain of latewood in the sapwood area was found to be twice as high as the compressive strength parallel to grain of earlywood. The compressive strength parallel to grain of latewood in the heartwood area, on the other hand, was found to be 2,5 times higher than the compressive strength parallel to grain of earlywood. This was due to the density of particular areas of wood and the dimensions of structural elements - tracheids. In the sapwood area, the density of latewood was ca. twice as high as the density of earlywood. Similar relationships were found for heartwood. The thickness of latewood tracheids was found to be 1,5 times greater than the thickness of earlywood tracheids. These relationships were observed in sapwood and heartwood. The diameter of earlywood tracheids in radial direction was twice as large as the diameter of latewood tracheids. These relationships were observed in yellow pine sapwood and heartwood.
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Barnett, J.R.; Bonham, V.A. 2004. Cellulose microfibril angle in the cell wall of wood fibres. Biol Rev 79(2): 461–472. https://doi.org/10.1017/s1464793103006377
Bergander, A.; Salmén, L. 2002. Cell wall properties and their effects on the mechanical properties of fibers. J Mater Sci 37(1): 151–156. https://doi.org/10.1023/A:1013115925679
Büyüksarı, Ü.; As, N.; Dündar, T. 2017. Mechanical properties of earlywood and latewood sections of Scots pine wood. Bioresources 12(2): 4004–4012. https://doi.org/10.15376/biores.12.2.4004-4012
Cramer, S.M.; Kretschmann, D.E.; Lakes, R.; Schmidt, T. 2005. Earlywood and latewood elastic properties in loblolly pine. Holzforschung 59(5): 531–538. https://doi.org/10.1515/hf.2005.088
Hein, P.R.G.; Lima, J.T. 2012. Relationships between microfibril angle, modulus of elasticity and compressive strength in Eucalyptus wood. Maderas-Cienc Tecnol 14(3): 267–274. http://dx.doi.org/10.4067/S0718-221X2012005000002
Hillis, W.E. 1999. The Formation of Heartwood and Its Extractives. In Phytochemicals in Human Health Protection, Nutrition, and Plant Defense. Recent Advances in Phytochemistry (Proceedings of the Phytochemical Society of North America), vol 33, Springer, Boston, MA, United States. Chapter 9: 215 - 253. https://doi.org/10.1007/978-1-4615-4689-4_9
International Organization for Standardization. ISO. 2014. ISO 13061-1: Physical and mechanical properties of wood - Test methods for small clear wood specimens - Part 1: Determination of moisture content for physical and mechanical tests. International Organization for Standardization: Geneva, Switzerland.
International Organization for Standardization. ISO. 2014. ISO 13061-2: Physical and mechanical properties of wood - Test methods for small clear wood specimens - Part 2: Determination of density for physical and mechanical tests. International Organization for Standardization: Geneva, Switzerland.
International Organization for Standardization. ISO. 2017. ISO 13061-17: Physical and mechanical properties of wood - Test methods for small clear wood specimens - Part 17: Determination of ultimate stress in compression parallel to grain. International Organization for Standardization: Geneva, Switzerland.
Kozakiewicz, P.; Życzkowski, W. 2015. Physical and mechanical properties and anatomy of common juniper (Juniperus communis L.) wood. Sylwan 159(2): 151−159. https://doi.org/10.26202/sylwan.2014104
Kretschmann, D.E.; Cramer, S.M. 2007. The role of earlywood and latewood properties on dimensional stability of loblolly pine. Proceedings of the compromised wood workshop. 2007 January 29–30, Christchurch, New Zealand. 215–236. https://pdfs.semanticscholar.org/8db5/ed5cd82e541a8ee09ca13fa14a5df7243331.pdf?_ga=2.256669067.1272077807.1592222473-44873478.1560722642
Kretschmann, D.E. 2010. Mechanical Properties of Wood. In Wood Handbook, General Technical Report FPL-GTR-190. U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, Madison, WI, United States. Chapter 5: 5–46. https://www.fpl.fs.fed.us/documnts/fplgtr/fpl_gtr190.pdf
Listyanto, T. 2018. Wood quality of Paraserianthes falcataria L. Nielsen syn wood from three year rotation of harvesting for construction application. Wood Res 63(3): 497–504. http://www.woodresearch.sk/wr/201803/13.pdf
Olivar, J.; Rathgeber, C.; Bravo F. 2015. Climate change, tree-ring width and wood density of pines in Mediterranean environments. IAWA J 36(3): 257–269. https://doi.org/10.1163/22941932-20150098
Peltola, H.; Gort, J.; Pulkkinen, P.; Zubizarreta Gerendiain, A.; Karppinen, J.; Ikonen, V.P. 2009. Differences in growth and wood density traits in Scots pine (Pinus sylvestris L.) genetic entries grown at different spacing and sites. Silva Fennica 43(3): 339–354. https://doi.org/10.14214/sf.192
Roszyk, E. 2014. The effect of ultrastructure and moisture content on mechanical parameters
of pine wood (Pinus sylvestris L.) upon tensile stress along the grains. Turk J Agric For 38(3): 413–419. https://doi.org/10.3906/tar-1306-81
Roszyk, E.; Moliński, W.; Kamiński, M. 2016. Tensile properties along the grains of earlywood and latewood of Scots pine (Pinus sylvestris L.) in dry and wet state. Bioresources 11(2): 3027–3037. https://doi.org/10.15376/biores.11.2.3027-3037
StatSoft 2014: STATISTICA version-12 software, TIBCO Software Inc., Palo Alto, CA, United States. https://www.statistica.com/en/
Tasissa, G; Burkhart, H.E. 1998. Modelling thinning effects on ring specific gravity of loblolly pine (Pinus taeda L.). For Sci 44(2): 212–223. https://doi.org/10.1093/forestscience/44.2.212
Thieret, J.W. 1993. Sections on Pinaceae and Calocedrus. Flora of North America Editorial Committee (eds.): Flora of North America North of Mexico, Vol. 2. Oxford University Press, New York, United States.
Traoré, M.; Kaal, J.; Martínez Cortizas, A. 2018. Differentiation between pine woods according to species and growing location using FTIR-ATR. Wood Sci Technol 52(2): 487–504. https://doi.org/10.1007/s00226-017-0967-9
Wagenführ, R. 2007. Holzatlas [The Atlas of Wood]. Fachbuchverlag Leipzig, München, Germany.
Wiedenhoeft, A. 2010. Structure and Function of Wood. In Wood Handbook, General Technical Report FPL-GTR-190. U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, Madison, WI, Chapter 3: 3–18. https://www.fpl.fs.fed.us/documnts/fplgtr/fpl_gtr190.pdf
Williams, R.S. 2010. Finishing of Wood. In Wood Handbook, General Technical Report FPL-GTR-190. U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, Madison, WI, Chapter 16: 16–39. https://www.fpl.fs.fed.us/documnts/fplgtr/fpl_gtr190.pdf
Wilson, K.; White, D.J.B. 1986. The Anatomy of Wood: Its Diversity and Variability, Stobart Davies Ltd, Ammanford, Great Britain.
Zhang, X.; Zhao, Q.; Wang S.; Trejo, R.; Lara-Curzio, E.; Dud, G. 2010. Characterizing strength and fracture of wood cell wall through uniaxial micro-compression test. Compos Part A Appl Sci Manuf 41(5): 632–638. https://doi.org/10.1016/j.compositesa.2010.01.010
Zink-Sharp, A.; Price, C. 2006. Intra-ring compression strength of low density hardwoods. Maderas-Cienc Tecnol 8(2): 117–126. https://doi.org/10.4067/s0718-221x2006000200005
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