The discussion centers on the search for elastic or rubber materials that contract when subjected to electricity and relax upon its removal. Brett identifies piezoelectricity as the mechanical reaction under electric stimulus, noting that most piezoelectric materials are brittle ceramics. He recommends polyvinylidene fluoride (PVDF) as a softer, more flexible alternative for small actuation applications. Additionally, he mentions electroactive elastomers as relevant materials for this purpose.
PREREQUISITESEngineers, material scientists, and robotics developers interested in flexible actuation technologies and the integration of smart materials in robotic systems.