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Lattice Materials with Reversible Foldability
Author(s) -
Ebrahimi Hamid,
Mousanezhad Davood,
Haghpanah Babak,
Ghosh Ranajay,
Vaziri Ashkan
Publication year - 2017
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201600646
Subject(s) - materials science , lattice (music) , hexagonal lattice , square lattice , finite element method , crystal structure , folding (dsp implementation) , condensed matter physics , statistical physics , topology (electrical circuits) , crystallography , mathematics , physics , structural engineering , thermodynamics , engineering , combinatorics , chemistry , antiferromagnetism , acoustics , ising model
The authors introduce a new class of lattice materials, where a controlled simultaneous folding of the lattice walls results in a significant size reduction while preserving the overall shape of the original lattice. This reversible folding scheme results in 67 and 50% reduction in size at each level for lattices with triangular and square grid topologies, respectively, while the design enables multiple levels of folding to achieve a desired final size. The authors study the elastic properties and the phononic band structure of the lattice at different stages of folding, using analytical and finite element methods. The proposed concept provides new opportunities for the development of multifunctional deployable structures through significant changes in the size and properties of lattice materials by folding.