论文标题
热弹性板的屈曲
Buckling of thermalized elastic sheets
论文作者
论文摘要
在结构和设备的小型化中，稳定的进展已经达到了一个量表，使热波动变得相关，因此了解这种波动如何影响其机械稳定性非常重要。在这里，我们研究了热板的屈曲，并证明热波动会增加临界屈曲载荷，这是由于比尺度依赖性弯曲刚度增强的材料的增强，该材料比特征性热长度尺度大得多。提出的结果是通用的，并且适用于各种微观纸。这些结果与原子薄的2D材料尤其重要，在原子上，热波动可以显着增加临界屈曲载荷，因为热长度尺度在室温下的纳米级数。
Steady progress in the miniaturization of structures and devices has reached a scale where thermal fluctuations become relevant and it is thus important to understand how such fluctuations affect their mechanical stability. Here, we investigate the buckling of thermalized sheets and we demonstrate that thermal fluctuations increase the critical buckling load due to the enhanced scale-dependent bending rigidity for sheets that are much larger than a characteristic thermal length scale. The presented results are universal and apply to a wide range of microscopic sheets. These results are especially relevant for atomically thin 2D materials, where thermal fluctuations can significantly increase the critical buckling load because the thermal length scale is on the order of nanometers at room temperature.
