论文标题
皱纹，褶皱和转弯：在非零温度下，受弹性板的异常变形结构
Wrinkles, folds and ripplocations: unusual deformation structures of confined elastic sheets at non-zero temperatures
论文作者
论文摘要
我们研究了限制在两个平坦的刚性壁之间的波动晶体板的变形，作为一个简单的层模型，在该模型中，在原子中{\ it}内的键比相同层的键比{\ IT}层之间的层强得多。当以适当的几何形状承受足够高的载荷时，这些固体以非常规的方式变形且失败。最近的实验表明，涉及{\ it ripplocations}的配置，其中一层向后折叠自身。这些结构是不同的，并被大的自由能屏障与原子层的平滑{\ it波纹}隔开，这些层总是在任何非零温度下存在。我们将蒙特卡洛模拟与伞采样技术结合使用，以获取形成这种结构并研究其特定实验特征的条件。
We study the deformation of a fluctuating crystalline sheet confined between two flat rigid walls as a simple model for layered solids where bonds among atoms {\it within} the same layer are much stronger than those {\it between} layers. When subjected to sufficiently high loads in an appropriate geometry, these solids deform and fail in unconventional ways. Recent experiments suggest that configurations named {\it ripplocations}, where a layer folds backwards over itself, are involved. These structures are distinct and separated by large free energy barriers from smooth {\it ripples} of the atomic layers that are always present at any non-zero temperature. We use Monte Carlo simulation in combination with an umbrella sampling technique to obtain conditions under which such structures form and study their specific experimental signatures.
