论文标题
Schallamach浪潮五十年:从橡胶摩擦到纳米级骨折
Fifty years of Schallamach waves: From rubber friction to nanoscale fracture
论文作者
论文摘要
鉴于其实际含义,软聚合物如何在坚硬的表面上滑动的问题具有重大的科学兴趣。具体而言,此类系统通常显示出有趣的粘流动力学,其中,尽管远程负载均匀,但界面间歇性移动。 \ mt {2021年标志着Adolf Schallamach(\ emph {Wear},1971)的开创性论文出版的50 $^{th} $周年,该论文首先揭示了粘纸和移动的分离浪之间的紧密联系,现在称为Schallamach Wave。我们将Schallamach的结果置于更广泛的背景下,并在讨论对孤独的Schallamach波的最新观察之前,回顾了随后对棍棒滑移的研究。在标准接触中不可观察到该变体,因此必须使用特殊的圆柱接触来量化其性质。后一种构型还揭示了出现双波(所谓的分离脉冲),该脉冲沿与Schallamach波相反的方向传播。我们展示了如何使用Continuum理论来描述双波和其他更通用的Schallamach型波,并为未来的研究提供指示。在此过程中,在纳米级力学和界面断裂中出现了Schallamach型波的基本类似物。结果是从Schallamach型波中学到的经验教训的持续应用,以更好地理解这些后一种现象。
The question of how soft polymers slide against hard surfaces is of significant scientific interest, given its practical implications. Specifically, such sytems commonly show interesting stick-slip dynamics, wherein the interface moves intermittently despite uniform remote loading. \mt{The year 2021 marked the 50$^{th}$ anniversary of the publication of a seminal paper by Adolf Schallamach (\emph{Wear}, 1971)} that first revealed an intimate link between stick-slip and moving detachment waves, now called Schallamach waves. We place Schallamach's results in a broader context and review subsequent investigations of stick-slip, before discussing recent observations of solitary Schallamach waves. This variant is not observable in standard contacts so that a special cylindrical contact must be used to quantify its properties. The latter configuration also reveals the occurrence of a dual wave -- the so-called separation pulse -- that propagates in a direction opposite to Schallamach waves. We show how the dual wave and other, more general, Schallamach-type waves can be described using continuum theory, and provide pointers for future research. In the process, fundamental analogues of Schallamach-type waves emerge in nanoscale mechanics and interface fracture. The result is an on-going application of lessons learnt from Schallamach-type waves to better understand these latter phenomena.