Video 5

Movie S4. Static coiling, straight rod: Nearly circular coils formed when a naturally straight rod (κn=0, same material and geometric parameters as in Movies S1–S3) is deployed onto a steady substrate (i.e., belt speed, vb=0). The direction of coiling is monotonic and set by symmetry breaking at initial contact. The injection speed is v=2.0 cm/s. Experiments (Left) vs. simulations (Right) are shown. The movie is sped up by a factor of 5, with respect to real time.

Coiling of elastic rods on rigid substrates

Mohammad K. Jawed, Fang Da, Jungseock Joo, Eitan Grinspun, and Pedro M. Reis

PNAS. 2014. 111:14663-14668 DOI: 10.1073/pnas.1409118111