落叶松规格材抗弯强度与抗拉强度的关系

赵秀; 吕建雄; 江京辉

doi:10.19455/j.mcgy.2010.04.001

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落叶松规格材抗弯强度与抗拉强度的关系
Relationship between Modulus of Rupture and Ultimate Tension Strength of Dimensional Larch Lumber
1. 中国林科院木材工业研究所
2. 国家林业局木材科学与技术重点实验室
2010年24卷第4期页码：1-4
DOI： 10.19455/j.mcgy.2010.04.001

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[1]赵秀,吕建雄,江京辉.落叶松规格材抗弯强度与抗拉强度的关系[J].木材工业,2010,24(04):1-4.

ZHAO Xiu, LU Jian-xiong, JIANG Jing-hui. Relationship between Modulus of Rupture and Ultimate Tension Strength of Dimensional Larch Lumber[J]. China Wood Industry, 2010,24(4):1-4.
[1]赵秀,吕建雄,江京辉.落叶松规格材抗弯强度与抗拉强度的关系[J].木材工业,2010,24(04):1-4. DOI： 10.19455/j.mcgy.2010.04.001.

ZHAO Xiu, LU Jian-xiong, JIANG Jing-hui. Relationship between Modulus of Rupture and Ultimate Tension Strength of Dimensional Larch Lumber[J]. China Wood Industry, 2010,24(4):1-4. DOI： 10.19455/j.mcgy.2010.04.001.

摘要

以兴安落叶松规格材的抗弯强度和抗拉强度测试数据为基础,首先建立规格材强度性质的概率密度函数,然后通过累积分布函数建立两种强度之间的关系。研究结果表明:兴安落叶松规格材抗弯强度的概率密度与对数分布拟合较好,抗拉强度的概率密度与威布尔分布拟合较好;抗弯强度和抗拉强度之间存在幂函数关系。

Abstract

The modulus of rupture（MOR） and ultimate tensile strength（UTS） of dimensional larch（Larix gmelinii） lumber were tested according to ASTM D 4761-1996.The probability density function was used to describe MOR and UTS data.The results indicated that logarithmic distribution had the best goodness of fit with MOR and Weibull distribution had the best goodness of fit with UTS.The relationship between MOR and UTS was established as a power function from the cumulative distributions of MOR and UTS.