Uploaded September 2023 | Updated September 2026, 2 weeks ago

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This bistable auxetic material gets bigger in all directions when you stretch it. It's also becomes 3 dimensional!

The paper by Tian Chen and colleagues is:
Bistable auxetic surface structures, ACM Transactions on Graphics (TOG), 40(4), 1-9. (Chen, T., Panetta, J., Schnaubelt, M., & Pauly, M. (2021) dl.acm.org/doi/abs/10.1145/3450626.3459940

You can find the cut patterns and other recourses here: github.com/UH-AIM/bistable-auxetic-surface-structures

Tian is currently working at the Architected Intelligent Matter Laboratory: https://aim.me.uh.edu/

Here's my video about flexible polyhedra: youtu.be/JiC6DbBoV4Y

Veritasium video about compliant mechanisms: youtube.com/watch?v=97t7Xj_iBv0

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