@article{
 title = {Uncovering the deformation mechanisms of origami metamaterials by introducing generic degree-four vertices},
 type = {article},
 year = {2016},
 identifiers = {[object Object]},
 pages = {043002},
 volume = {94},
 websites = {https://goo.gl/IFtW03,https://goo.gl/tg7a9G},
 month = {10},
 day = {24},
 id = {b70afefa-f5c5-35c4-b100-e1a314f67d69},
 created = {2016-12-04T19:15:39.000Z},
 accessed = {2016-11-06},
 file_attached = {true},
 profile_id = {b5f8f599-d388-33f5-b35f-d42e32fe63c4},
 last_modified = {2019-04-10T19:01:24.833Z},
 tags = {#MetaMaterial,#Origami,#SelfLocking,@Design,@Mechanics},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Fang2016},
 private_publication = {false},
 abstract = {Origami-based design holds promise for developing new mechanical metamaterials whose overall kinematic and mechanical properties can be programmed using purely geometric criteria. In this article, we demonstrate that the deformation of a generic degree-four vertex (4-vertex) origami cell is a combination of contracting, shearing, bending, and facet-binding. The last three deformation mechanisms are missing in the current rigid- origami metamaterial investigations, which focus mainly on conventional Miura-ori patterns. We show that these mechanisms provide the 4-vertex origami sheets and blocks with new deformation patterns as well as extraordinary kinematical and mechanical properties, including self-locking, tridirectional negative Poisson’s ratios, flipping of stiffness profiles, and emerging shearing stiffness. This study reveals that the 4-vertex cells offer a better platform and greater design space for developing origami-basedmechanical metamaterials than the conventionalMiura-ori cell. DOI:},
 bibtype = {article},
 author = {Fang, H and Li, S and Ji, H and Wang, K W},
 journal = {Physical Review E},
 number = {4}
}

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