受限纳米棒：由于螺旋屈曲而导致的堵塞
Confined nanorods: jamming due to helical buckling
摘要：
我们研究了一个纵向加载的弹性纳米棒内的圆柱形通道和经典弹性理论的背景下，欧拉屈曲不稳定性导致的螺旋后屈曲形式的通道内的杆。受限螺旋线的局部螺距沿着通道变化，并且沿着杆传递的纵向力也是如此，远离加载端逐渐减小。这产生了纳米棒在通道内堵塞的可能性。
英文摘要：
We investigate a longitudinally loaded elastic nanorod inside a cylindrical channel and show within the context of classical elasticity theory that the Euler buckling instability leads to a helical postbuckling form of the rod within the channel. The local pitch of the confined helix changes along the channel and so does the longitudinal force transmitted along the rod, diminishing away from the loaded end. This creates a possibility of jamming of the nanorod within the channel.
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