Description
We present a class of elastic structures which exhibit collective buckling in 3D, and create these by a 3D printing/moulding technique. Our structures consist of cubic lattice of anisotropic unit cells, and we show that their mechanical properties are programmable via the orientations of all unit cells. Collectively buckling, but nonperiodic, structures can be found by solving a combinatorial problem related to spin ice. Such nonperiodic structures present a novel pathway to maximally auxetic, isotropic metamaterials.
Recommended Citation
van Hecke, M., Coulais, C., & Florijn, B. (2014). 3D buckligami: combinatorial mechanical metamaterials. In A. Bajaj, P. Zavattieri, M. Koslowski, & T. Siegmund (Eds.). Proceedings of the Society of Engineering Science 51st Annual Technical Meeting, October 1-3, 2014 , West Lafayette: Purdue University Libraries Scholarly Publishing Services, 2014. https://docs.lib.purdue.edu/ses2014/mss/ssm/43
3D buckligami: combinatorial mechanical metamaterials
We present a class of elastic structures which exhibit collective buckling in 3D, and create these by a 3D printing/moulding technique. Our structures consist of cubic lattice of anisotropic unit cells, and we show that their mechanical properties are programmable via the orientations of all unit cells. Collectively buckling, but nonperiodic, structures can be found by solving a combinatorial problem related to spin ice. Such nonperiodic structures present a novel pathway to maximally auxetic, isotropic metamaterials.