Thin sheets respond to confinement by wrinkling, as in the edges of leaves or cooked bacon, or by forming sharp vertices and ridges, as in crumpled wrapping paper (stress focusing). In intermediate confinement regimes, we can observe transitions between these motifs. Buckling patterns and associated forces are highly sensitive to geometry, which we explore in this work.

L. Stein-Montalvo, A. Guerra, K. Almedia, O. Kodio, and D.P. Holmes. Wrinkling and developable cones in centrally confined sheets. Physical Review E 108, 035002 (2023) doi: 10.1103/PhysRevE.108.035002