论文标题
弹性磁盘在圆形支撑环上的凹痕
Indentation of an elastic disk on a circular supporting ring
论文作者
论文摘要
压缩应力下的薄弹性二维系统可以通过从平面的起伏中发展出来，从而减轻其拉伸能量的一部分。我们从实验和理论上研究了由圆环支撑的弹性磁盘的凹痕，并表明压缩应力是通过两种不同的途径缓解的：要么开发\ textit {buckles}，这些{buckles}在系统的一个区域集中在系统中。我们将皱纹或D-Cone存在的压痕阈值作为纵横比的函数。
Thin elastic two-dimensionnal systems under compressive stresses may relieve part of their stretching energy by developing out of plane undulations. We investigate experimentally and theoretically the indentation of an elastic disk supported by a circular ring and show that compressive stresses are relieved via two different routes : either developing \textit{buckles} which are spread over the system or developing a \textit{d-cone} where deformation is concentrated in a subregion of the system. We characterize the indentation threshold for wrinkles or d-cone existence as a function of aspect ratio.
