标题： 通过软化加强：从非线性变形区域中弯曲板的刚度增加 显示英文标题

标题： Strengthening by softening: Rigidity increase of a curved sheet from nonlinear regime of deformation

摘要： 众所周知，一块被刚性圆形夹具夹持的薄片比平放时具有更大的弯曲强度。 在这里，我们报告说，弯曲薄片的弯曲强度在夹持条件变软的情况下进一步增加。 这种意外的柔顺效应与我们通过控制实验观察到的曲率引起的刚度的几何特性有关，并通过数值模拟进一步分析。 此外，我们还发现另一种柔顺效应，即开口的弯曲薄片比相同尺寸的封闭圆柱体更能抵抗弯曲。 显示英文摘要

摘要： It is well-known that a thin sheet held in a rigid circular clamp has a larger flexural strength than when it is flat. Here, we report that the flexural strength of curved sheets is further increased with a softening of the clamping condition. This unexpected compliance effect relates to the geometrical properties of curvature-induced rigidity that we observe in controlled experiments and further analyze with numerical simulations. In addition, we identify another compliance effect in which opened curved sheets can be more resistant to bending than closed cylinders of same dimensions.