文献类型：期刊文献

英文题名：Size Effect on Strength Properties of Chinese Larch Dimension Lumber

作者：Zhou, Haibin[1] Han, Liuyang[1] Ren, Haiqing[1] Lu, Jianxiong[1]

第一作者：周海宾

通信作者：Ren, HQ[1]|[a0005812e0f3d391949bb]任海青;

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2015

卷号：10

期号：2

起止页码：3790-3797

外文期刊名：BIORESOURCES

收录：;EI(收录号：20153601249065);Scopus(收录号：2-s2.0-84940863377);WOS:【SCI-EXPANDED(收录号:WOS:000354642000143)】；

基金：The authors are grateful for the support of the CAF Research, Grant. No. CAFINT2012C01.

语种：英文

外文关键词：Bending strength; Chinese larch; Compression strength; Size effect; Tensile strength; Visual grading

摘要：An experimental study was conducted to investigate the effect of size on the strength properties of Chinese larch (Larix gmelinii) dimension lumber. 7546 pieces of dimension lumber were sampled in three sizes, 40 by 65 mm, 40 by 90 mm, and 40 by 140 mm. After visually-grading and grouping, mechanical properties of bending strength, tensile strength, and compression strength parallel to grain were measured in a full-size test. Using nonparametric estimates, the combined length and width size effect parameters of H and L were 0.21 and 0.23 for the bending strength. The width effect parameters were 0.29 in H and 0.33 in L for the ultimate tensile strength parallel to grain. The width effect parameters of H and L were 0.12 and 0.20 for the ultimate compression strength parallel to grain. These size effect factors between H and L could be used when using the lumber for practical purposes.