Improved bending strength of Douglas fir (Pseudotsuga menziesii) timber relative to Japanese larch (Larix kaempferi Carr) grown in Korea

IF 1.3 Q2 MATERIALS SCIENCE, PAPER & WOOD
S. Jang, C. Kang, H. Kolya
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引用次数: 2

Abstract

ABSTRACT Small-diameter logs are intended to function as high-value structural timber. Bending strength properties is an essential phenomenon for structural lumber. Herein, the modulus of elasticity, the modulus of rupture and the allowable bending stress (ABS) of domestic (Korea) small and large-diameter larch and large diameter Douglas fir timber were measured and compared according to the standard of ASTM D 2915. Samples were visually graded as Grade 1 to Grade 4 following the provisions included in KS F 3021.2013. The large-diameter Douglas fir timber (Grade 1 to Grade 4) exhibited the highest MOE value, but in Grade 4, it showed the lowest MOR value compared with the small and large diameter of larch timber. The ABS of small-diameter larch was 12.0 MPa, higher relative to KBC 2009 Grade 1 structural lumber (8.0 MPa). The ABS of large-diameter of larch and Douglas fir timber exhibited 15.5 and 18.1 MPa, respectively.
韩国生长的花旗松(pseudosuga menziesii)木材相对于日本落叶松(Larix kaempferi Carr)木材的抗弯强度提高
摘要:小直径原木被用作高价值的结构木材。抗弯强度是结构木材的基本性能。本文根据ASTM D 2915标准,对国产(韩国)小、大直径落叶松和大直径花旗松木材的弹性模量、断裂模量和许用弯曲应力(ABS)进行了测量和比较。按照KS F 3021.2013的规定,将样品目测分为1级至4级。大径花旗松(1 ~ 4级)木材的MOE值最高,4级木材的MOR值低于小径落叶松和大径落叶松。小直径落叶松的ABS为12.0 MPa,高于KBC 2009级1级结构材(8.0 MPa)。大径落叶松和花旗松的ABS分别为15.5和18.1 MPa。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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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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