煤的直接单轴拉伸特性的试验研究

Pilot study of coal characteristic under the direct uniaxial stretch

在实验室条件下 ,成功地开展了煤的直接单轴拉伸特性的试验研究 ,分析了加载速度对抗拉强度、弹性模量的影响 ,探讨了直接单轴拉伸条件下煤的弹塑性特征及其各向异性特征 。

In laboratory, author successfully studied the coal characteristics under the direct uniaxial stretch, analyzed the effect of the speed of loading on the tensile strength and the elastic modulus, discussed the coal elastic plastic feature and the coal anisotropy feature under the direct uniaxial stretch, and compared them with the results of uniaxial compression and breaking stretch.