We developed an inverse-design technique to compute growth factors and directions in order to grow elastic bilayers from any shape into any other shape. The movie demonstrates an example of this: an initially cylindrical elastic bilayer sheet grows into the a snapdragon flower petal. Growth factors (colors) and directions (lines) of the bottom (left) and top (right) layer are shown. For more details see the scientific article http://dx.doi.org/10.1073/pnas.1709025114 .
Partial credit: Etienne Vouga and L. Mahadevan
Snapdragom flower model is provided courtesy of E. Coen