摘要
研究采用变跨距的三点弯曲方法测试10年生火炬松木材17号家系和50号家系的剪切弹性模量GLT,GLR值;用45°偏轴压缩法测量GRT值.测试结果表明,速生材火炬松的剪切弹性模量GLT,GLR,GRT都不高,在70-180 MPa之间,其中GRT最小;另外,整体上火炬松17家系的抗剪切性能优于50号家系.
In this paper, the ten-year-old loblolly's shear moduli, GLT, GLR, were tested by the variable span method in the three point bending experiment, while GRT was measured by a compressing test with 45°bias-axis. The results show that the shear moduli (GLT, GLR, GRT) ranged from 70 MPa to 180 MPa. GRT is the lowest among the three shear moduli. The anti-shear capability of the 17th clone is greater than that of the 50th clone.
出处
《力学与实践》
CSCD
北大核心
2003年第5期57-60,共4页
Mechanics in Engineering
