Tailored Buckling Microlattices as Reusable Light‐Weight Shock Absorbers. Issue 28 (9th May 2016)

• Record Type: Journal Article
• Authors: Frenzel, Tobias; Findeisen, Claudio; Kadic, Muamer; Gumbsch, Peter; Wegener, Martin
• Is Part Of: Advanced materials. Volume 28:Issue 28(2016)
• Page Start: 5865
• Page End: 5870
• Publication Date: 2016-05-09
• Subjects: buckling -- instabilities -- metamaterials -- microlattices -- shock absorbers; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201600610
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : 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.