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Characteristic value of the modulus of elasticity (MOE) for natural and planted larch in northeast China

Tian, Zhaopeng LU ; Xu, Junhua ; Li, Mingyue ; Wang, Zhaohui ; Serrano, Erik LU orcid ; Gong, Yingchun and Ren, Haiqing (2021) In Forests 12(7).
Abstract

The density and modulus of elasticity (MOE) distribution can provide information on the effectiveness of parametric and non-parametric methods in calculating the characteristic value of MOE. In this study, we aim to determine the optimal distribution model of the actual measured data of the lumber. We also estimate the lumber’s MOE characteristic value and compare the difference in density and MOE between natural and planted larch. Approximately 1200 pieces of dimension lumber of 4 m × 140 mm × 40 mm in size, made from larch and planted larch, were obtained, tested, and the corresponding standard MOE value was calculated. Results revealed the 3-parameter Weibull distribution to be optimal in fitting the natural and planted larch... (More)

The density and modulus of elasticity (MOE) distribution can provide information on the effectiveness of parametric and non-parametric methods in calculating the characteristic value of MOE. In this study, we aim to determine the optimal distribution model of the actual measured data of the lumber. We also estimate the lumber’s MOE characteristic value and compare the difference in density and MOE between natural and planted larch. Approximately 1200 pieces of dimension lumber of 4 m × 140 mm × 40 mm in size, made from larch and planted larch, were obtained, tested, and the corresponding standard MOE value was calculated. Results revealed the 3-parameter Weibull distribution to be optimal in fitting the natural and planted larch distributions. The parametric method proved effective in calculating the characteristic value of both larch groups, with characteristic MOE values of 9.73 kN/mm2 and 8.84 kN/mm2, and characteristic density values of 530 kg/m3 and 460 kg/m3 for natural and planted larch, respectively. Moreover, the MOE and density values followed grades C40 and C35. Thus, the conclusion is that the parametric method should be used to determine these characteristic values for natural and planted larch.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Characteristic value, Dimension lumber, MOE, Non-destructive testing, Planted larch, Probability distribution
in
Forests
volume
12
issue
7
article number
883
pages
13 pages
publisher
MDPI AG
external identifiers
  • scopus:85109803642
ISSN
1999-4907
DOI
10.3390/f12070883
language
English
LU publication?
yes
additional info
Funding Information: Funding: This research was funded by National Natural Science Foundation of China, grant number 31971596 and the Chinese Scholarship Council grant number 20190320022. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
id
edd5a51f-9e65-4ae8-80db-df72a666f9ed
date added to LUP
2021-09-23 17:40:31
date last changed
2022-04-27 04:10:17
@article{edd5a51f-9e65-4ae8-80db-df72a666f9ed,
  abstract     = {{<p>The density and modulus of elasticity (MOE) distribution can provide information on the effectiveness of parametric and non-parametric methods in calculating the characteristic value of MOE. In this study, we aim to determine the optimal distribution model of the actual measured data of the lumber. We also estimate the lumber’s MOE characteristic value and compare the difference in density and MOE between natural and planted larch. Approximately 1200 pieces of dimension lumber of 4 m × 140 mm × 40 mm in size, made from larch and planted larch, were obtained, tested, and the corresponding standard MOE value was calculated. Results revealed the 3-parameter Weibull distribution to be optimal in fitting the natural and planted larch distributions. The parametric method proved effective in calculating the characteristic value of both larch groups, with characteristic MOE values of 9.73 kN/mm<sup>2</sup> and 8.84 kN/mm<sup>2</sup>, and characteristic density values of 530 kg/m<sup>3</sup> and 460 kg/m<sup>3</sup> for natural and planted larch, respectively. Moreover, the MOE and density values followed grades C40 and C35. Thus, the conclusion is that the parametric method should be used to determine these characteristic values for natural and planted larch.</p>}},
  author       = {{Tian, Zhaopeng and Xu, Junhua and Li, Mingyue and Wang, Zhaohui and Serrano, Erik and Gong, Yingchun and Ren, Haiqing}},
  issn         = {{1999-4907}},
  keywords     = {{Characteristic value; Dimension lumber; MOE; Non-destructive testing; Planted larch; Probability distribution}},
  language     = {{eng}},
  number       = {{7}},
  publisher    = {{MDPI AG}},
  series       = {{Forests}},
  title        = {{Characteristic value of the modulus of elasticity (MOE) for natural and planted larch in northeast China}},
  url          = {{http://dx.doi.org/10.3390/f12070883}},
  doi          = {{10.3390/f12070883}},
  volume       = {{12}},
  year         = {{2021}},
}