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

IF 1.3 Q2 MATERIALS SCIENCE, PAPER & WOOD International Wood Products Journal Pub Date : 2020-03-04 DOI:10.1080/20426445.2020.1735754
Bayasaa Tumenjargal, F. Ishiguri, Yusuke Takahashi, I. Nezu, Bayartsetseg Baasan, Ganbaatar Chultem, Haruna Aiso-Sanada, J. Ohshima, S. Yokota
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引用次数: 9

Abstract

ABSTRACT 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.
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用无损检测方法预测西伯利亚落叶松木材的弯曲性能
摘要本研究旨在研究是否可以利用西伯利亚落叶松(Larix sibirica)直立树的应力波速或原木的动态杨氏模量来预测不同高度生产的木材的弹性模量(MOE)和断裂模量(MOR)。总共190块木材(38乘89 横截面为mm)从从25棵直立树获得的111根原木中切割。直立树的应力波速度与MOE之间存在显著的正相关系数(r = 0.776)和MOR(r = 0.702)。原木的动态杨氏模量也与MOE显著相关(r = 0.745)和MOR(r = 0.584)值。本研究的结果表明,应力波速度和动态杨氏模量有助于在树木育种中选择优良树木,并对生产结构木材的原木进行分类。
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来源期刊
International Wood Products Journal
International Wood Products Journal MATERIALS SCIENCE, PAPER & WOOD-
CiteScore
2.40
自引率
0.00%
发文量
27
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