Effect of Stress Level on the Compressive Strength of the Rock Samples Subjected to Cyclic Loading

World Multidisciplinary Earth Sciences Symposium

Beser, Melek Hanim^1 ; Aydiner, Kerim^1

Karadeniz Technical University, Mining Engineering Department, Trabzon, Turkey^1

关键词: Constant frequency;    Cyclic loading test;    Effect of stress;    Number of cycles;    Rock sample;    Servo hydraulic;    Stress levels;    Uniaxial compressive strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/221/1/012023/pdf
DOI  :  10.1088/1755-1315/221/1/012023

来源: IOP

【 摘 要 】

The effect of stress level on the compressive strength of rock samples is researched using Tephrite samples subjected to cyclic loading. Four sets of stress level (% 20, %30 %40 and % 50 of uniaxial compressive strength) were applied for cyclic loading tests on dry and saturated samples by 200 tons servo-hydraulic testing rig. The compressive strength of the rock by different stresses were determined under constant frequency and number of cycles at failure. The results of the cyclic loading tests indicate that stress level has significant influence on the uniaxial compressive strength. An increase in stress resulted in a decrease in compressive strength proportionality. In the case of the saturated samples, it was found that compressive strength reduced by approximately 25 per cent.