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Deformation Characteristics of Granite Under Uniaxial Compressive Loading Condition
Author(s): JIANG Hong-bo
Pages: 16-
17
Year: 2011
Issue:
1
Journal: Non-ferrous Mining and Metallurgy
Keyword: 单轴压缩; 花岗岩; 变形; 岩石破坏;
Abstract: 在刚性压力机上,应用动态应变仪、应力传感器、位移传感器等仪器对花岗岩进行单轴压缩实验.得到了花岗岩破裂过程的全应力-应变曲线.通过对全应力-应变曲线的分析表明:试样变形特征基本上是一致的,都经历了初始压密、弹性变形、裂纹初始、裂纹稳定扩展、裂纹不稳定发展直到破裂五个阶段.通过对试样峰值前的受力变形特点的观察,发现试样接近其峰值强度时,出现了一小段应力增长缓慢,而相对应的应变量明显增加的塑性变形阶段...
Citations
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