Abstract
Radial and axial variations in the longitudinal ultrasonic wave velocity within stem of 17–19-year-old Melia azedarach planted in two different sites in northern Vietnam were experimentally investigated. Wood samples were collected from 10, 50, and 90% of the radial length from pith at 0.3, 1.3, 3.3, 5.3, and 7.3 m heights above the ground to measure ultrasonic velocity (Vu), fiber length (FL), air-dry density (AD), and compressive strength (CS) at moisture content approximately 12%. The average wave velocity for two sites exhibited minimum value near the pith about 3700 m/s. It kept increasing to 4200 m/s at the middle position before remaining constant value forward to outside. In axial direction, the variation of Vu with height was very small and without statistical significance. Vu had a strong positive linear relationship with both FL (r = 0.69, p < 0.001) and AD (r = 0.67, p < 0.001). These findings reveal that the FL and AD greatly influence the within-tree variations in the ultrasonic wave velocity in M. azedarach. Besides, the significant positive linear correlation between CS and Vu suggests that Vu was a useful predictor of the CS for M. azedarach planted in northern Vietnam.
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References
Baar J, Tippner J, Gryc V (2013) The relation of fibre length and ray dimensions to sound propagation velocity on wood of selected tropical hardwood. IAWA J 34:49–60
Bowyer JL, Shmulsky R, Haygreen JG (2007) Forest products and wood science: an introduction, 5th edn. Blackwell, Ames
Bucur V (1983) An ultrasonic method for measuring the elastic constants of wood increment cores bored from living trees. Ultrasonics 21:116–126
Bucur V (1995) Acoustics of wood. CRC Press, New York
Bucur V (2006) Acoustics of wood, 2nd edn. Springer, Berlin
Chuang ST, Wang SY (2001) Evaluation of standing tree quality of Japanese cedar grown with different spacing using stress- wave and ultrasonic-wave methods. J Wood Sci 47:245–253
Dundar T, Wang X, As N, Avci E (2016) Potential of ultrasonic pulse velocity for evaluating the dimensional stability of oak and chestnut wood. Ultrasonics 66:86–90
Duong DV, Matsumura J (2018) Within-stem variations in mechanical properties of Melia azedarach planted in northern Vietnam. J Wood Sci 64:329–337
Duong DV, Missanjo E, Matsumura J (2017) Variation in intrinsic wood properties of Melia azedarach L. planted in northern Vietnam. J Wood Sci 63:560–567
Goncalves R, Batista FAF, Lorensani RGM (2013) Selecting Eucalyptus clones using ultrasound test on standing trees. For Prod J 63:112–118
Hasegawa M, Takata M, Matsumura J, Oda K (2011) Effect of wood properties on within-tree variation in ultrasonic wave velocity in softwood. Ultrasonics 51:296–302
Hasegawa M, Mori M, Matsumura J (2015) Relations of fiber length to within-tree variation of ultrasonic wave velocity in fast-growing trees. Wood Fiber Sci 47:313–318
Hasegawa M, Kumamoto T, Okamura H, Takeuchi K, Asakura R, Matsumura J (2017) Relationship between chemical retention and velocity of air-coupled ultrasonic waves in fire-retardant-treated wood. BioResources 12:3387–3395
JIS Z2101:1994 (2000) Methods of test for woods. Japanese Standard Association, Tokyo (in Japanese)
Karsulovic JT, Leon LA, Gaete L (2000) Ultrasonic detection of knots and annual ring orientation in pinus radiata lumber. Wood Fiber Sci 32:278–286
Keunecke D, Sonderegger W, Pereteanu K, Luthi T, Niemz P (2007) Determination of young’s and shear moduli of common yew and Norway spruce by means of ultrasonic waves. Wood Sci Technol 41:309–327
Matsumura J, Inoue M, Yokoo K, Oda K (2006) Cultivation and utilization of Japanese fast growing trees with high capability for carbon stock I: potential of Melia azedarach. Mokuzai Gakkaishi 52:77–82 (in Japanese)
Mishiro A (1996) Effect of density on ultrasonic velocity in wood. Mokuzai Gakkaishi 42:887–894 (in Japanese)
Oliveira FGR, Sales A (2006) Relationship between density and ultrasonic velocity in Brazilian tropical woods. Biores Technol 97:2443–2446
Oliveira FGR, Candian M, Lucchette DD, Salgon JL, Sales A (2005) A technical note on the relationship between ultrasonic velocity and moisture content of Brazilian hardwood (Goupia glabra). Build Environ 40:297–300
Pinto JMA, Chahud E Jr, Cimini CA (2015) Evaluation of compressive strength for the wood Eucalyptus grandis using ultrasonic wave propagation. J Wood Prod 73:127–129
R-software (2017) Available from CRAN at https://cran.r-project.org. Accessed 5 Dec 2017
Sharma SK, Shukla SR (2012) Properties evaluation and defects detection in timbers by ultrasonic non-destructive technique. J Ind Acad Wood Sci 9:66–71
Sharma CL, Sharma M, Jamir L (2014) Radial variation in wood properties of plantation grown Terminalia myriocarpa Heurck and Muell-Arg in Nagaland, India. Res J Recent Sci 3:9–14
Simpson WT, Wang X (2001) Relationship between longitudinal stress wave transit time and moisture content of lumber during kiln-drying. For Prod J 51:51–54
Venson I, Guzman JAS, Talavera FJF, Richter HG (2008) Biological, physical and mechanical wood properties of Paraiso (Melia azedarach) from a roadside planting at Huaxtla, Jalisco, Mexico. J Trop For Sci 20:38–47
Zobel BJ, Van Buijtenen JP (1989) Wood variation, its causes and control. Springer, Heidelberg
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Van Duong, D., Hasegawa, M. & Matsumura, J. The relations of fiber length, wood density, and compressive strength to ultrasonic wave velocity within stem of Melia azedarach. J Indian Acad Wood Sci 16, 1–8 (2019). https://doi.org/10.1007/s13196-018-0227-0
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DOI: https://doi.org/10.1007/s13196-018-0227-0