Under shock load conditions the peak load can exceed the ultimate bending strength of the core material and fracture occurs, usually at the most highly stressed cross section area.
在冲击负荷下，最大负荷超过了轧辊芯部材料所能承受的最大抗弯曲负荷，发生截面断裂。断裂一般产生于负荷应力为最大的截面。
The external steel frames are simplified as a series of half frames and the core tube is modeled as a bending and shearing two spring system.
外部钢框架进一步简化为半刚架和相应的弹性阶梯形等效弯曲杆的串联体系，这种简化模型能考虑柱轴向变形对结构动力反应的影响；
The characteristics of this sensor is analysed. It is concluded that for a certain refractive index range, the index of fibre core, the radius of core and bending radius need to be optimized.
详细分析了这种传感器的特性，指出对于特定的外界折射率范围，需设计纤芯折射率、光纤半径、弯曲半径三个参量的最佳组合。
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