School of Physics and Astronomy, University of Edinburgh, James Clerk Maxwell Building, The King's Buildings, Edinburgh, UK.
Philos Trans A Math Phys Eng Sci. 2009 Dec 28;367(1909):5033-50. doi: 10.1098/rsta.2009.0191.
Brownian dynamics simulations of bidisperse hard discs moving in two dimensions in a given steady and homogeneous shear flow are presented close to and above the glass transition density. The stationary structure functions and stresses of shear-melted glass are compared quantitatively to parameter-free numerical calculations of monodisperse hard discs using mode coupling theory within the integration through transients framework. Theory qualitatively explains the properties of the yielding glass but quantitatively overestimates the shear-driven stresses and structural anisotropies.
本文对二维各向同性稳态剪切流中临近和高于玻璃化转变密度的双分散硬碟进行了布朗动力学模拟。通过瞬态积分的模式耦合理论，对剪切熔融玻璃的静态结构函数和应力进行了定量比较，同时还与单分散硬碟的无参数数值计算进行了比较。该理论定性地解释了屈服玻璃的性质，但定量上高估了剪切驱动的应力和结构各向异性。
