摘要
以砂岩单轴压缩室内实验为基础,通过有限差分软件FLAC3D模拟该单轴实验,以得到的应力-应变曲线和累积损伤数曲线分析砂岩的损伤破裂过程。分析表明:可以通过监测模型中的一些节点来获取砂岩的体积应变特征,结合累积损伤数的发展得出岩石损伤破裂的情况。
Based on the experiment of sandstone uniaxial compression chamber, the uniaxial experimentwas simulated by finite difference software FLAC3D, and the stress-strain curve and cumulative damagecurve were used to analyze the damage process of sandstone. The analysis shows that the volume straincharacteristics of sandstone can be obtained by monitoring some nodes in the model, and thedevelopment of cumulative damage number can be combined, it is concluded that the situation of the sandstone damage rupture.
出处
《煤炭技术》
CAS
2018年第1期10-12,共3页
Coal Technology
基金
国家自然科学基金项目(51464036
51564048)
关键词
单轴压缩
损伤破裂
体积应变
uniaxial compression
damage rupture
volume strain
