Experimental Investigation of Sandstone under Cyclic Loading: Damage Assessment Using Ultrasonic Wave Velocities and Changes in Elastic Modulus
Experimental Investigation of Sandstone under Cyclic Loading: Damage Assessment Using Ultrasonic Wave Velocities and Changes in Elastic Modulus
复制标题
循环加载下砂岩的实验研究：利用超声波速度和弹性模量变化进行损伤评估
DOI：
10.1155/2018/7845143
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发表时间：
2018-04
影响因子：
1.6
通讯作者：
Qian Deyu
中科院分区：
文献类型：
--
作者：
Yang Sen;Zhang Nong;Feng Xiaowei;Kan Jiaguang;Pan Dongjiang;Qian Deyu
This laboratory study investigated the damage evolution of sandstone specimens under two types of cyclic loading by monitoring and analyzing changes in the elastic moduli and the ultrasonic velocities during loading. During low-level cyclic loading, the stiffness degradation method was unable to describe the damage accumulations but the ultrasonic velocity measurements clearly reflected the damage development. A crack density parameter is introduced in order to interpret the changes in the tangential modulus and the ultrasonic velocities. The results show the following. (1) Low-level cyclic loading enhanced the anisotropy of the cracks. This results from the compression of intergranular clay minerals and fatigue failure. (2) Irreversible damage accumulations during cyclic loading with an increasing upper stress limit are the consequence of brittle failure in the sandstone’s microstructure.
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影响因子：
2.9
作者：
Y. Guéguen;A. Schubnel
通讯作者：
Y. Guéguen;A. Schubnel
DOI：
10.1016/s0148-9062(99)00016-9
发表时间：
1999-06-01
影响因子：
7.2
作者：
Ray, SK;Sarkar, M;Singh, TN
通讯作者：
Singh, TN
影响因子：
6.2
作者：
M. V. M. S. Rao-M.-V.-M.-S.-Rao-2244169062;Y. V. Ramana
通讯作者：
M. V. M. S. Rao-M.-V.-M.-S.-Rao-2244169062;Y. V. Ramana
影响因子：
--
作者：
C. Scholz;T. Koczynski
通讯作者：
C. Scholz;T. Koczynski
影响因子：
6.9
作者：
M. Azadi;S. Hosseini
通讯作者：
M. Azadi;S. Hosseini