论文标题
应力诱导的弹性球二维包装的顺序
Stress-induced ordering of two-dimensional packings of elastic spheres
论文作者
论文摘要
在限制环境中的颗粒包装是多个领域的常见问题。在这里，基于二维赫兹粒子模型，我们研究了在压缩下的可变形球形颗粒的堆积，并揭示了应力作为调节粒子排列的秩序领域的关键作用。 具体而言，在增加的压缩下，挤压的颗粒自发地以三角形和方格的序列，五角形的镶嵌和重点三角晶格组织为常规包装。这项工作中揭示的丰富有序模式和复杂的结构表明，基于外部压力和粒子阵列的内在弹性不稳定的相互作用的富有成果的组织策略。
Packing of particles in confined environments is a common problem in multiple fields. Here, based on the two-dimensional Hertzian particle model, we study the packing of deformable spherical particles under compression, and reveal the crucial role of stress as an ordering field in regulating particle arrangement. Specifically, under increasing compression, the squeezed particles spontaneously organize into regular packings in the sequence of triangular and square lattices, pentagonal tessellation, and the reentrant triangular lattice. The rich ordered patterns and complex structures revealed in this work suggest a fruitful organizational strategy based on the interplay of external stress and intrinsic elastic instability of particle arrays.
