Ability to predict flexural properties of Douglas-fir crossarms

References

• American National Standards Institute (ANSI) (2015) 05.3 Solid Sawn Wood Crossarms and Braces: Specifications and Dimensions (New York: ANSI), 52 pp.
   Google Scholar
• Anderson, H. (2019) An assessment of grading criteria vs flexural properties for Douglas-fir crossarms. MS thesis, Oregon State University, Corvallis, OR.
   Google Scholar
• ASTM (2018) Standard D4761-18 Standard Test Methods for Mechanical Properties of Lumber and Wood-Based Structural Materials . ASTM Annual Book of Standards Volume 4.10. Wood (West Conshohocken, PA: ASTM International).
   Google Scholar
• Baño, V., Arriaga, F. and Guaita, M. (2013) Determination of the influence of size and position of knots on load capacity and stress distribution in timber beams of Pinus sylvestris using finite element model. Biosystems Engineering, 114(3), 214–222. doi: https://doi.org/10.1016/j.biosystemseng.2012.12.010
   Web of Science ®Google Scholar
• Barnes, H. M. (2001) Bending properties of wooden crossarms. Proceedings American Wood Preservers’ Association, 97, 30–38.
   Google Scholar
• Bendtsen, B. A. and McDonald, K. (1985) Localized slope-of-grain – its importance and measurement. 5th nondestructive testing of wood symposium, Pullman, WA, 477–489.
   Google Scholar
• Buchanan, A. H. (1990) Bending strength of lumber. Journal of Structural Engineering, 116(5), 1213–1229. doi: https://doi.org/10.1061/(ASCE)0733-9445(1990)116:5(1213)
   Google Scholar
• Boresi, A. P. and Schmidt, R. J. (2003) Advanced Mechanics of Materials (New York: J. Wiley).
   Google Scholar
• Buksnowitz, C., Hackspiel, C., Hofstetter, K., Müller, U., Gindl, W., Teischinger, A. and Konnerth, J. (2010) Knots in trees: Strain distribution in a naturally optimised structure. Wood Science and Technology, 44(3), 389–398. doi: https://doi.org/10.1007/s00226-010-0352-4
   Web of Science ®Google Scholar
• Cao, Y., Street, J., Mitchell, B., To, F., DuBien, J., Seale, R. D. and Shmulsky, R. (2018) Effect of knots on horizontal shear strength in southern yellow pine. BioResources, 13(2), 4509–4520. doi: https://doi.org/10.15376/biores.13.2.4509-4520
   Google Scholar
• Catchot, T., Owens, F. C., Shmulsky, R. and Barnes, H. M. (2017a) Comparison of wood utility crossarm properties from 1995 and 2015. Forest Products Journal, 67(1/2), 50–54. doi: https://doi.org/10.13073/FPJ-D-16-00026
   Google Scholar
• Catchot, T., Owens, F. C., Shmulsky, R. and Seale, R. D. (2017b) Using nondestructive testing to identify premium grades in southern pine and Douglas-fir utility crossarms. Wood and Fiber Science, 49(1), 105–112.
   Web of Science ®Google Scholar
• Fernanda, M., Rocha, V., Costa, L. R., Costa, L. J., Clara, A., De Araújo, C., Charles, B., Soares, D., Ricardo, P. and Hein, G. (2018) Wood knots influence the modulus of elasticity and resistance to compression. Floresta e Ambiente, 25(4), 2–7.
   Web of Science ®Google Scholar
• Galligan, W. L. and McDonald, K. A. (2000) Machine Grading of Lumber: Practical Concerns for Lumber Producers . USDA Forest Service General Technical Report FPL-GTR-7 (Madison, WI: US Forest Products Laboratory).
   Google Scholar
• Grant, D. J., Anton, A. and Lind, P. (1984) Bending strength, stiffness, and stress-grade of structural Pinus radiata: Effect of knots and timber density. New Zealand Journal of Forestry Science, 14(3), 331–348.
   Google Scholar
• Gupta, R. (2004) Effect of knots on longitudinal shear strength of Douglas-fir using shear blocks. Forest Products Journal, 54(11), 77–83.
   Web of Science ®Google Scholar
• Hu, M., Briggert, A., Olsson, A., Johansson, M., Oscarsson, J. and Säll, H. (2018) Growth layer and fibre orientation around knots in Norway spruce: A laboratory investigation. Wood Science and Technology, 52(1), 7–27. doi: https://doi.org/10.1007/s00226-017-0952-3
   Google Scholar
• Koman, S., Feher, S., Abraham, J. and Taschner, R. (2013) Effect of knots on the bending strength and the modulus of elasticity of wood. Wood Research, 58(4), 617–626.
   Web of Science ®Google Scholar
• Lam, F., Barrett, J. D. and Nakajima, S. (2005) Influence of knot area ratio on the bending strength of Canadian Douglas fir timber used in Japanese post and beam housing. Journal of Wood Science, 51(1), 18–25. doi: https://doi.org/10.1007/s10086-003-0619-6
   Google Scholar
• Liebel, S. and Mueller, R. (1994) Douglas fir crossarms: Solid sawn vs. laminated comparison. Transmission and distribution conference, New York, 581–586.
   Google Scholar
• Nusret, A., Yener, G. and Turker, D. (2006) Effect of knots on the physical and mechanical properties of scots pine (Pinus sylvestris L.). Wood Research, 51(3), 51–58.
   Web of Science ®Google Scholar
• Oh, J.-K., Kim, K.-M. and Lee, J.-J. (2009) Use of adjacent knot data in predicting bending strength of dimension lumber by X-ray. Wood and Fiber Science, 42(1), 10–20.
   Web of Science ®Google Scholar
• Takeda, T. (1999) Differences of tensile strength distribution between mechanically high-grade and low-grade Japanese larch lumber II: Effect of knots on tensile strength distribution. Journal of Wood Science, 45(3), 207–212. doi: https://doi.org/10.1007/BF01177727
   Google Scholar
• USDA (2010) Wood Handbook—Wood as an Engineering Material . General Technical Report FPL-GTR-190 (Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory), 508 p.
   Google Scholar
• West Coast Lumber Inspection Bureau (WCLIB) (2015) Standard No 17: Grade and Dressing Rules for Douglas-fir, Western Hemlock, Western Redcedar, Spruce-Pine-Fir South and Other Species (Portland, OR: WCLIB).
   Google Scholar