CAJ | 학술논문

基于疲劳载荷对应力～应变滞回曲线的影响，作者研究了滞回曲线对应力振幅和频率的响应，获得了载荷超过屈服点后应力振幅增大，滞回曲线趋于稳定，应变硬化效应增强的结果。随着正弦波频率增加岩石的滞回圈频散效应增强，饱和液体加强了这种频散作用。随孔隙液体的粘滞系数增大，滞回曲线的频散效应更强。
기우피로재하대응력～응변체회곡선적영향，작자연구료체회곡선대응력진폭화빈솔적향응，획득료재하초과굴복점후응력진폭증대，체회곡선추우은정，응변경화효응증강적결과。수착정현파빈솔증가암석적체회권빈산효응증강，포화액체가강료저충빈산작용。수공극액체적점체계수증대，체회곡선적빈산효응경강。
The responses of hysteresis loops to stress amplitude and frequency are studied in this paper based on the influences of fatigue loading on stress-strain curves. The results show that as the loading exceeds the yield point, the strain amplitude augments and the hysteresis curves tend to be steady, besides, the strain hardening effect is also strengthened. When the frequencies of the sine waves increase, the frequency dispersion of the hysteresis loops of the rocks is strengthened. This effect is also intensified with the saturation fluids. The frequency dispersion effect will become more obvious when the coefficients of viscosity of pore fluids increase.