标题： 仿张力结构的聚合物薄膜：通过多聚体图案实现渐进弯曲刚度 显示英文标题

标题： Tensegrity-Inspired Polymer Films: Progressive Bending Stiffness through Multipolymeric Patterning

摘要： 在单轴拉伸下具有J型应力-应变行为的材料，其中强度随着变形的进行而增加，已经通过各种材料设计开发出来。 另一方面，能够在弯曲下逐渐变硬的聚合物材料仍未实现。 为解决这一差距，本研究从膜张力结构中获得灵感，这些结构通过平衡杆中的压缩力和膜中的张力来实现结构稳定性。 值得注意的是，其中一些结构在弯曲下表现出刚度增加。 使用一种多聚合物图案化技术，我们开发了一种具有膜张力结构类似特性的聚合物薄膜，在弯曲下会变硬。 这种效应是由于杆突起产生的膜张力以及最大曲率区域的惯性矩增加所致。 显示英文摘要

摘要： Materials with J-shaped stress-strain behavior under uniaxial stretching, where strength increases as deformation progresses, have been developed through various materials designs. On the other hand, polymer materials that progressively stiffen under bending remain unrealized. To address this gap, this study drew inspiration from membrane tensegrity structures, which achieve structural stability by balancing compressive forces in rods and tensile forces in membrane. Notably, some of these structures exhibit increased stiffness under bending. Using a multipolymer patterning technique, we developed a polymer film exhibiting membrane tensegrity-like properties that stiffens under bending. This effect results from membrane tension generated by rod protrusions and an increase in second moment of area at regions with maximum curvature.