煤材料变形力学特性分析

在简单压缩实验条件下获得了煤的应力－应变（δ－ε）关系曲线．较好地再现了煤的应变强化和应变软化特性．实验表明煤材料具有典型的弹塑性性质；煤和地壳中其他岩石相比具有一定的特殊性．煤的应力、应变及破坏规律与煤的力学性质有关．

Analysis on Mechanical Behavior of Coal material Deformation

The relation curve of stress-strain of coal is obtained under the condition of sim ple compressional test by the authors, and the strain hardening and oftening behaviors of coal arc better reproduced. The test indicates that the coal materal has a typical elasticoplastic property. Comparing with the other rocks in the crust, the coal has a specificity. The strers and strain of coal and its destructive rules are relative to its mechanical behaviors.