Supplementary Materials

Ultralight, ultrastiff mechanical metamaterials

Xiaoyu Zheng, Howon Lee, Todd H. Weisgraber, Maxim Shusteff, Joshua DeOtte, Eric B. Duoss, Joshua D. Kuntz, Monika M. Biener, Qi Ge, Julie A. Jackson, Sergei O. Kucheyev, Nicholas X. Fang, Christopher M. Spadaccini

Materials/Methods, Supplementary Text, Tables, Figures, and/or References

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  • Materials and Methods
  • Figs. S1 to S9
  • Table S1
  • Captions for movies S1 to S3
  • References

Images, Video, and Other Other Media

Movie S1
Uniaxial incremental cyclic compression of a 5% solid polymer (HDDA) bend-dominated lattice (played at 4x speed). Compression was actuated using a precision air-bearing three-axis positioning system (Aerotek, Inc., Pittsburgh, PA). In the test configuration, the bottom surface remained fixed while the top surface was displaced in the vertical direction. Each successive compression cycle increases the lattice deformation by approximately 10% strain.
Movie S2
Uniaxial incremental cyclic compression of a 9.8% solid polymer (HDDA) stretch-dominated lattice (played at 4x speed). The equipment and test configuration are the same as Movie S1. Each successive compression cycle increases the lattice deformation by approximately 15% strain.
Movie S3
Uniaxial cyclic compression of a stretch-dominated ultralight hollow-tube Ni-P lattice (p=11.8 kg/m3) with increases in lattice strain by approximately 10 ┬Ám at each subsequent loading cycle. The equipment and test configuration are the same as Movie S1.