壳体屈曲的稳定性态势
Stability Landscape of Shell Buckling.
作者信息
Virot Emmanuel, Kreilos Tobias, Schneider Tobias M, Rubinstein Shmuel M
机构信息
Emergent Complexity in Physical Systems Laboratory (ECPS), École Polytechnique Fédérale de Lausanne, CH 1015 Lausanne, Switzerland.
John A, Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.
出版信息
Phys Rev Lett. 2017 Dec 1;119(22):224101. doi: 10.1103/PhysRevLett.119.224101. Epub 2017 Nov 28.
We measure the response of cylindrical shells to poking and identify a stability landscape, which fully characterizes the stability of perfect shells and imperfect ones in the case where a single defect dominates. We show that the landscape of stability is independent of the loading protocol and the poker geometry. Our results suggest that the complex stability of shells reduces to a low dimensional description. Tracking ridges and valleys of this landscape defines a natural phase-space coordinates for describing the stability of shells.
我们测量了圆柱壳对戳刺的响应，并确定了一个稳定性态势，它全面表征了在单个缺陷起主导作用的情况下完美壳和不完美壳的稳定性。我们表明，稳定性态势与加载方案和戳刺器几何形状无关。我们的结果表明，壳的复杂稳定性可简化为低维描述。追踪该态势的脊和谷定义了用于描述壳稳定性的自然相空间坐标。
Zotero 插件