论文标题
二维网络玻璃中可逆和不可逆的原子级重排的起源
Origin of reversible and irreversible atomic-scale rearrangements in a model two-dimensional network glass
论文作者
论文摘要
在这项贡献中，我们研究了模型二维网络玻璃中可塑性的基本机制。玻璃是通过使用蒙特卡洛键切换算法而产生的，并经历了简单的剪切变形，然后在选定的变形状态下随后卸载。这使我们能够研究可逆和不可逆的原子尺度重排的拓扑起源。结果表明，在卸载期间加载恢复过程中触发的某些事件，而有些事件则没有。因此，观察到两种基本塑料事件，可以与模型玻璃的网络拓扑相关。
In this contribution, we investigate the fundamental mechanism of plasticity in a model two-dimensional network glass. The glass is generated by using a Monte Carlo bond-switching algorithm and subjected to athermal simple shear deformation, followed by subsequent unloading at selected deformation states. This enables us to investigate the topological origin of reversible and irreversible atomic-scale rearrangements. It is shown that some events that are triggered during loading recover during unloading, while some do not. Thus, two kinds of elementary plastic events are observed, which can be linked to the network topology of the model glass.
