您要查找的是不是：
- Rock damage variable 损伤变量
- According to basic damage principle, the shear damage variable of rock and the pull damage variable of grout body are defined, and the damage evolution equation is suggested. 摘要根据损伤理论的基本原理，分别定义了岩体剪切损伤变量和受拉浆体材料的损伤变量，确定了各自相应的损伤演化方程；
- Variable measurement of rock damage is the groundwork in study on damage mechanism of rocks and the key issue to bring the rock damage theory into practice in rock engineering. 岩石损伤变量的测定是岩石损伤力学分析研究的基础,岩石损伤理论付诸岩石工程实践必须解决岩石损伤检测的问题。
- Two parameters describing the damage variable can be determined according to the tri-axial tests of rocks. 根据岩石三轴试验，可确定该模型中表述损伤变量的双参数。
- In rock mass, there exists rock damage expressing in the form of small opening, air-bubble, fracture, cleavage etc. 岩石中含有以孔隙、气泡、微观裂隙、节理面等形态表现出来的岩石损伤。
- The relationship between damage variable D(K_1 ) and number of fatigue cycles (N) can be used to detect fatigue damage and to divine fatigue life tbr metal materials. 利用损伤变量D(K_1)和循环次数N的关系曲线,可以对材料进行疲劳损伤检测并对其疲劳寿命进行预测。
- The evolution regularity of microproe and constitutive relation of rock damage is discussed. 在此基础上,讨论了微空隙的扩展和演化率,以及损伤本构关系。
- Introducing the time-dependent damage variable into the constitutive equations of the crack zone, we modified the Dugdale model of crack damage zone around crack-tip. 对裂尖银纹损伤区的Dugdale模型进行了修正，将时间、位置、应变相关的损伤变量引入到银纹区的本构方程中。
- Optical fiber sensor is embeded in rock layer of model to find premonitory information of rock deformation and the process of rock damage with mining. 在模拟矿山开采引起的岩层运动时,将光纤传感器埋入模型的岩层中,研究采用光纤传感技术监测岩体变形的理论和技术。
- It is difficult to detect the absolute density of rock by CT image in quantitative analysis of rock damage process in compression. 用 CT图像定量分析岩石受力损伤破坏过程的难点 ,是难以知道岩石内部的绝对密度变化量。
- Based on the experiments of exploding on the surface of the cement sample, the phenomenon of the rock damage and fracture by shock waves in exploding was simulated. 摘要通过水中爆炸波对水泥试样的损伤破坏实验来模拟水力裂缝层内爆炸采油中激波使岩石损伤开裂的现象。
- Lastly, defined the damage variable about damage area and obtained the relation between damage variable and damage deviatoric stress which correspond exactly to the damage propagation characteristics. 结合损伤理论定义了以损伤面积作为损伤因子的损伤变量，损伤变量与偏应力间的曲线关系符合岩石损伤演化特性。
- Dynamic Damage and Failure Mechanism of Rock and Its Damage Variable 岩石动态损伤断裂机理与损伤变量
- The damage factors suitable for recycled fiber damage were defined elementally, with which evolvement rules of paper strength with damage variables were studied. 最后本文引入了损伤力学理论，初步定义了适合二次纤维损伤的损伤变量，研究了纸页强度性能随损伤变量的演化规律；
- The rock was honeycombed with passages. 岩石上有许多蜂窝状的小孔。
- Many young rock hounds grow up to be geologists. 许许多多爱好收集岩石的少年，长大后成了地质学家。
- Keywords Damage variable;Macro mesoscopic;Acoustoelastic method; 损伤变量;宏观;细观;超声波;
- The climber had to negotiate a steep rock face. 那攀登者得攀越一陡峭岩石。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- The flood did a lot of damage to the crops. 洪水毁坏了大量农作物。
