Institute of Applied Physics, Karlsruhe Institute of Technology (KIT), 76128, Karlsruhe, Germany.
Institute for Applied Materials, Karlsruhe Institute of Technology (KIT), 76128, Karlsruhe, Germany.
Adv Mater. 2016 Jul;28(28):5865-70. doi: 10.1002/adma.201600610. Epub 2016 May 9.
Structures and materials absorbing mechanical (shock) energy commonly exploit either viscoelasticity or destructive modifications. Based on a class of uniaxial light-weight geometrically nonlinear mechanical microlattices and using buckling of inner elements, either a sequence of snap-ins followed by irreversible hysteretic - yet repeatable - self-recovery or multistability is achieved, enabling programmable behavior. Proof-of-principle experiments on three-dimensional polymer microstructures are presented.
结构和材料吸收机械（冲击）能量通常利用粘弹性或破坏性的修改。基于一类单轴轻质几何非线性机械微晶格，并利用内部元件的屈曲，实现了一系列的快速插入，随后是不可逆的滞后-但可重复的-自恢复或多稳定性，从而实现可编程行为。本文对三维聚合物微结构进行了原理验证实验。
