论文标题

在干扰了不对称bidisperse颗粒包装中的其他过渡线

Additional transition line in jammed asymmetric bidisperse granular packings

论文作者

Petit, Juan C., Kumar, Nishant, Luding, Stefan, Sperl, Matthias

论文摘要

我们提供了数值证据,表明压缩后,在堵塞机构内部进行了额外的不连续过渡,以进行不对称的bidispers颗粒堆积。这条额外的过渡线将堵塞的状态与大型和小颗粒形成的堵塞网络的网络分开,并且过渡是由导致危机网络的粒子数量的不连续性所表明的。额外的过渡线从干扰过渡的曲线中出现,并以不连续性消失的终点终止。额外的线以$δ= 0.22 $的尺寸比率开始,并且对于较小的$δ$增长了更长的时间。对于$δ\至0 $,附加过渡线接近可以分析得出的限制。观察到的堵塞场景让人联想到胶体玻璃中发现的玻璃玻璃过渡。

We present numerical evidence for an additional discontinuous transition inside the jammed regime for an asymmetric bidisperse granular packing upon compression. This additional transition line separates jammed states with networks of predominantly large particles from jammed networks formed by both large and small particles, and the transition is indicated by a discontinuity in the number of particles contributing to the jammed network. The additional transition line emerges from the curves of jamming transitions and terminates in an end-point where the discontinuity vanishes. The additional line is starting at a size ratio around $δ= 0.22$ and grows longer for smaller $δ$. For $δ\to 0$, the additional transition line approaches a limit that can be derived analytically. The observed jamming scenarios are reminiscent of glass-glass transitions found in colloidal glasses.

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