论文标题
部分可观测时空混沌系统的无模型预测
'Guided' Fractures in Graphene Mechanical Diode-like Structures
论文作者
论文摘要
二极管的概念通常应用于电子和热设备，但很少用于机械设备。最近提出的裂缝整流效应在基于三角形空隙的基于聚合物的结构中，促使我们使用石墨烯膜在纳米级上测试这些思想。使用完全原子的反应性分子动力学模拟，我们表明存在稳健的矫正样效应。裂缝可以被“引导”，以比相反的方向更容易沿着一个特定的方向传播。我们还观察到，每个空隙之间的间距具有最佳值，以进行整流效果。
The concept of the diode is usually applied to electronic and thermal devices but very rarely for mechanical ones. A recently proposed fracture rectification effect in polymer-based structures with triangular voids defects has motivated us to test these ideas at the nanoscale using graphene membranes. Using fully-atomistic reactive molecular dynamics simulations we showed that robust rectification-like effects exist. The fracture can be 'guided' to easier propagate along one specific direction than its opposite. We also observed that there is an optimal value for the spacing between each void for the rectification effect.
