Predicting the bending properties of Larix sibirica lumber using nondestructive-testing methods

被引：15

作者：

Tumenjargal, Bayasaa ^{[1
,2
,3
]}

Ishiguri, Futoshi ^{[1
]}

Takahashi, Yusuke ^{[1
]}

Nezu, Ikumi ^{[1
]}

Baasan, Bayartsetseg ^{[3
]}

Chultem, Ganbaatar ^{[3
]}

Aiso-Sanada, Haruna ^{[4
]}

Ohshima, Jyunichi ^{[1
]}

Yokota, Shinso ^{[1
]}

机构：

[1] Utsunomiya Univ, Sch Agr, Utsunomiya, Tochigi 3218505, Japan

[2] Tokyo Univ Agr & Technol, United Grad Sch Agr Sci, Fuchu, Tokyo, Japan

[3] Mongolian Univ Sci & Technol, Training & Res Inst Forestry & Wood Ind, Ulaanbaatar, Mongolia

[4] Forestry & Forest Prod Res Inst JSPS Res Fellow, Tsukuba, Ibaraki, Japan

来源：

INTERNATIONAL WOOD PRODUCTS JOURNAL | 2020年 / 11卷 / 03期

关键词：

Larix sibirica; non-destructive methods; stress-wave velocity; dynamic Young's modulus; modulus of elasticity; modulus of rupture; structural lumber; Siberian larch; HIGHER NATURAL FREQUENCY; WAVE-PROPAGATION METHOD; LOG IN-PILE; STANDING TREES; STRESS-WAVE; ACOUSTIC MEASUREMENTS; QUALITY EVALUATION; ELASTICITY MOE; PINE LUMBER; RUPTURE MOR;

D O I：

10.1080/20426445.2020.1735754

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

This study aims to investigate whether it is possible to predict the modulus of elasticity (MOE) and modulus of rupture (MOR) of lumber produced from different heights using the stress-wave velocity of standing trees or the dynamic Young's modulus of logs in Siberian larch (Larix sibirica). A total of 190 pieces of lumber (38 by 89 mm in cross section) were cut from 111 logs obtained from 25 standing trees. Significant positive correlation coefficients were found between the stress-wave velocity of standing trees and MOE (r = 0.776) and MOR (r = 0.702) of this lumber. The dynamic Young's modulus of the logs also correlated significantly with MOE (r = 0.745) and MOR (r = 0.584) values. The results obtained in the present study suggest that stress-wave velocity and dynamic Young's modulus are useful for selecting superior trees in tree breeding and sorting logs for producing structural lumber.

引用

页码：115 / 121

页数：7

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