数字散斑面内相关法测量木材抗压弹性模量

被引：19

作者：

徐曼琼

金观昌

鹿振友

机构：

[1] 清华大学工程力学系

[2] 北京林业大学工学院

来源：

林业科学 | 2003年 / 02期

关键词：

散斑; 木材; 火炬松; 弹性模量;

D O I：

暂无

中图分类号：

S781 [木材学];

学科分类号：

082902 ;

摘要：

Elastic modulus of the 17 and 50 loblolly clones were measured by DSCM . The result showed E L, E T and E R of the 17 loblolly clone were 6 110, 1 207, 1 576 MPa, respectively. Those of the 50 loblolly clone, however, were 5 965, 1 308, 1 606 MPa, respectively. In addition, the method of DSCM for the compression elastic modulus of loblolly was right and proved by resistance strain gages. The error was 1%～7%. DSCM have some virtues, such as simple optical setup, convenient measurement, etc.

引用

页码：174 / 176

页数：3

共 5 条

[1] 火炬松木材的抗弯弹性模量和抗弯强度的变异 [J].