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Tailored Buckling Microlattices as Reusable Light‐Weight Shock Absorbers
Author(s) -
Frenzel Tobias,
Findeisen Claudio,
Kadic Muamer,
Gumbsch Peter,
Wegener Martin
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201600610
Subject(s) - materials science , multistability , buckling , viscoelasticity , shock (circulatory) , microstructure , shock absorber , composite material , shell (structure) , nonlinear system , structural engineering , medicine , physics , quantum mechanics , engineering
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.