Numerical Modelling of Electro-sensitive Materials: Towards a Tool for the Enhancement of Smart Material Features.Thursday (24.09.2020) 11:20 - 11:35 Z: Special Symposia II Part of:
The structure of bones, muscles, tendons and their connection allows for a certain deformation capability, level of stability and force exertion of biological organs, based on the needs of the organism and its surrounding environment. Due to their high deformation capability, compact structural connection and quasi-instantaneous response, the use of electro-active polymers (EAP) for the development of biomimetic artificial muscles and soft robotics is a promising approach. However, some of the smart materials properties and several external factors can limit their performance capability. Time dependent hysteresis, temperature sensitivity of the material, electrical breakdown and electro-mechanical instabilities can diminish the capacity of EAP-based actuators and hinder the desired actuation behaviour from being accurately achieved in terms of both time and space. Developments of numerical simulation tools along with progress in material science can serve for further understanding of the multi-physical behaviour of those smart materials with considerable potential for future enhancements. In this contribution, several aspects regarding computational modelling of the multi-physical response of EAP are considered, demonstrating a link between the numerical developments and the real life implications of the underlying material and its use. Furthermore, visual simulations of several existing actuator structures are presented.