Wrinkles, creases and folds are everywhere in nature, from our skin to the buckled crust of the Earth. They're useful structures for engineers. Wrinkles in thin films, for example, can help make durable circuit boards for flexible electronics.
A new mathematical model developed by researchers from Brown University could help engineers control the formation of wrinkle, crease, and fold structures in a wide variety of materials. It may also help scientists understand how these structures form in nature.