论文标题
屈曲与多稳态元素的单侧约束
Buckling vs unilateral constraint for a multistable metamaterial element
论文作者
论文摘要
设计和研究了结构元素，为开发弹性多稳态超材料构成了基础。结构设计的LeitMotif是实现的支柱的实现，其特征是在消失的拉伸或压缩负荷下发生分叉。结果表明，无效负载的屈曲导致具有单方面约束公式的机械等效性，从而引入了动力学的冲击。为了对后者进行未来的分析，研究了非线性准静态响应，显示了该结构的多稳定特征，这可能是可行的或可超强的。
A structural element is designed and investigated, forming the basis for the development of an elastic multistable metamaterial. The leitmotif of the structural design is the implementation of a strut characterized by a bifurcation occurring at either vanishing tensile or compressive load. It is shown that buckling at null load leads to a mechanical equivalence with a unilateral constraint formulation, introducing shocks in dynamics. Towards a future analysis of the latter, the nonlinear quasi-static response is investigated, showing the multistable character of the structure, which may appear as bistable or tetrastable.
