论文标题
在各个方向上被卡住：动态剪切在一个通过密集的悬架拖曳的圆柱体上堵塞
Getting jammed in all directions: Dynamic shear jamming around a cylinder towed through a dense suspension
论文作者
论文摘要
提出了通过玉米淀粉和蔗糖水的密集悬浮液拖曳气缸的实验结果。将重点放在此类系统中存在的干扰方面。文献集中在独立推动，拉动或剪切条件下堵塞区域的繁殖。不同的前部如何相互作用以及同时生成时前部是否保持对称。调查这是我们的主要目标。使用当前的设置，我们能够在气缸周围查看一个连续的准2D字段。因此，提出了一种新的产生阵线的方式，从而可以同时检查，拉和剪切。与先前的研究一致，与横向方向相比，前沿在纵向方向上的传播速度大约是两倍，这归因于单个潜在的发作应变，而不管气缸的方向如何。尽管干扰的前沿显示出几乎完美的横向对称性，但仍存在明显的纵向不对称性。这在速度和应变场中显而易见，并且在前传播速度和发作应变中也可以检测到。
Experimental results of towing a cylinder through a dense suspension of cornstarch and sucrose-water are presented. Focus is placed on the jamming fronts that exist in such systems. The literature has concentrated on the propagation of the jammed region under pushing, pulling or shearing conditions independently. How the different fronts interact and if the fronts are symmetric when generated simultaneously has remained unexplored. Investigating this is our main goal. With the current setup, we are able to view a continuous, quasi-2D field around the cylinder. As such, a new way of generating jamming fronts is presented whereby pushing, pulling and shearing can be examined simultaneously. In agreement with previous studies, the front propagates roughly twice as fast in the longitudinal direction compared to the transverse direction, which is attributed to a single underlying onset strain, regardless of orientation from the cylinder. Although the jamming front shows nearly perfect transverse symmetry, there is clear longitudinal asymmetry. This is evident in the velocity and strain fields, and is also detectable in the front propagation velocity and onset strain.
