用可逆粘性单元捕捉粘滑现象和Schwarzamach波
Stick-slip phenomena and Schallamach waves captured using reversible cohesive elements
摘要：
可逆性对于正确表示各种物理环境中的表面剥离至关重要，从自然界中的运动到机器人应用中的抓取设备，甚至到构造板块的滑动。建模的附着-再附着序列，称为粘滑，提出了几个挑战，在一个连续的框架。在这里，我们利用定制的可逆的凝聚力元素的混合有限元模型，可以处理发生的管理单元通过不稳定性。模拟捕捉各种剥离现象，出现在实验观察，其中层从一个平坦的，刚性的基板在平行于表面的方向拉。对于长的层，周期性的再附着的发展，并与概念的Schlamach波。此外，表面性能和粘滑行为之间的连接进行了研究：我们发现，粘滑是链接到本地化变形和损伤的界面的倾向。除了阐明各种剥离行为和分离模式，这里开发的计算框架提供了一个简单的方法来调查复杂的分层过程，这可以指导未来的应用程序在不同的规模和不同的设置。
英文摘要：
Reversibility is of paramount importance in the correct representation of surface peeling in various physical settings, ranging from motility in nature, to gripping devices in robotic applications, and even to sliding of tectonic plates. Modeling the detachment-reattachment sequence, known as stick-slip, imposes several challenges in a continuum framework. Here we exploit customized reversible cohesive elements in a hybrid finite element model that can handle occurrence of snap-through instabilities. The simulations capture various peeling phenomena that emerge in experimental observations, where layers are pulled from a flat, rigid substrate in the direction parallel to the surface. For long layers, periodicity in reattachment is shown to develop and is linked to the concept of Schallamach waves. Further, the connection between surface properties and stick-slip behavior is investigated: we find that stick-slip is linked to the propensity of the interface to localize deformation and damage. Beyond elucidating the various peeling behaviors and the detachment modes, the computational framework developed here provides a straightforward approach for investigation of complex delamination processes, which can guide development of future applications across different scales and in various settings.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
