论文标题
无摩擦球形固定器的包装
Packings of frictionless spherocylinders
论文作者
论文摘要
我们提出了有关无摩擦球形颗粒填料的特性的模拟结果。从空间中颗粒的随机分布开始，通过最小化粒子间接触的势能，直到达到力平衡的状态来产生堆积。对于不同的粒子纵横比$α= 10 \ ldots 40 $，我们计算触点$ z $，压力以及散装和剪切模量。最重要的是$ f_0 $ f_0 $ spherocylinders在两端都具有联系，因为它控制着干扰阈值$ z_c（f_0）= 8+2f_0 $。这些结果突出了轴向“滑动”的重要作用，这是零能量模式，但前提是不存在末端接触。
We present simulation results on the properties of packings of frictionless spherocylindrical particles. Starting from a random distribution of particles in space, a packing is produced by minimizing the potential energy of inter-particle contacts until a force-equilibrated state is reached. For different particle aspect ratios $α=10\ldots 40$, we calculate contacts $z$, pressure as well as bulk and shear modulus. Most important is the fraction $f_0$ of spherocylinders with contacts at both ends as it governs the jamming threshold $z_c(f_0)=8+2f_0$. These results highlight the important role of the axial "sliding" degree of freedom of a spherocylinder, which is a zero-energy mode but only if no end-contacts are present.
