Size effect of sandstone after high temperature under uniaxial compression
Size effect of sandstone after high temperature under uniaxial compression
复制标题
单轴压缩高温后砂岩的尺寸效应
DOI：
10.1007/s11771-015-2709-1
复制
发表时间：
2015-05
影响因子：
4.4
通讯作者：
王辰
中科院分区：
文献类型：
--
作者：
茅献彪;赵洪辉;尹乾;王辰
为了研究尺寸效应及其演变，对高温处理后的五种不同尺寸的砂岩样品进行了单轴压缩试验。测试结果表明，随着温度的升高，砂岩的密度、纵波波速、峰值强度、平均模量和正割模量逐渐减小，而峰值应变逐渐增大。随着高径比的增大，砂岩峰值强度降低，具有明显的尺寸效应。提出了考虑温度影响的砂岩材料尺寸效应新理论模型，随着温度的升高，尺寸效应更加明显。随着温度的升高，阈值逐渐减小，实验值与理论值的偏差在0.44%~6.06%之间，说明理论模型具有一定的可信度。
Uniaxial compression tests on sandstone samples with five different sizes after high temperature processes were performed in order to investigate the size effect and its evolution. The test results show that the density, longitudinal wave velocity, peak strength, average modulus and secant modulus of sandstone decrease with the increase of temperature, however, peak strain increases gradually. With the increase of ratio of height to diameter, peak strength of sandstone decreases, which has an obvious size effect. A new theoretical model of size effect of sandstone material considering the influence of temperature is put forward, and with the increase of temperature, the size effect is more apparent. The threshold decreases gradually with the increase of temperature, and the deviations of the experimental values and the theoretical values are between 0.44% and 6.06%, which shows quite a credibility of the theoretical model.
登录
查看更多内容
DOI：
10.1016/s1365-1609(00)00071-x
发表时间：
2001-02
影响因子：
7.2
作者：
Z. X. Zhang;J. Yu;S. Kou;P. Lindqvist
通讯作者：
Z. X. Zhang;J. Yu;S. Kou;P. Lindqvist
DOI：
10.1007/s11431-009-0063-y
发表时间：
2009-02
期刊：
Science in China Series E: Technological Sciences
影响因子：
--
作者：
Lian-ying Zhang;X. Mao;A. Lu
通讯作者：
Lian-ying Zhang;X. Mao;A. Lu
影响因子：
6.2
作者：
Tian, Hong;Kempka, Thomas;Ziegler, Martin
通讯作者：
Ziegler, Martin
DOI：
10.1016/s1674-5264(09)60054-5
发表时间：
2009-05
期刊：
Mining Science and Technology (china)
影响因子：
--
作者：
X. Mao;Lian-ying Zhang;Tianhao Li;Hai-shun Liu
通讯作者：
X. Mao;Lian-ying Zhang;Tianhao Li;Hai-shun Liu
影响因子：
4.2
作者：
Tielin Yang
通讯作者：
Tielin Yang