Ishima Daisuke, Hayakawa Hisao
Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan.
Phys Rev E. 2020 Apr;101(4-1):042902. doi: 10.1103/PhysRevE.101.042902.
Herein we numerically study the rheology of a two-dimensional frictional granular system confined by constant pressure under oscillatory shear. Several scaling laws for the storage and loss moduli against the scaled strain amplitude have been found. The scaling laws in plastic regime for large strain amplitude can be understood by the angular distributions of the contact force. The scaling exponents are estimated by considering the physical mechanism.
在此，我们对在振荡剪切下由恒定压力限制的二维摩擦颗粒系统的流变学进行了数值研究。已经发现了储能模量和损耗模量相对于标度化应变幅度的几个标度律。对于大应变幅度的塑性 regime 中的标度律，可以通过接触力的角分布来理解。通过考虑物理机制对标度指数进行了估计。
