Young Researchers' Minisymposium

YR Me3 Computational mechanics of electro-active synthetic and biological materials
Daniele Rosato (U Stuttgart), Serdar Göktepe (METU Ankara)

The phrase “electro-active”' refers to a broad class of materials that either actively responds to an electric field by undergoing remarkable deformations or intrinsically generates an electric activity upon an external mechanical stimulation. In recent years, there has been a tremendous interest in functional materials such as electro-active-polymers, piezoelectrics, ferroelectrics. The synthetically manufactured electro-active materials have a wide spectrum of applications that cover high-tech devices, bio-medical products, artificial muscles, to mention a few. Shape of the man-made electro-active products can be chosen practically arbitrarily; and more importantly, their properties can be tailored to meet a wide range of requirements. The optimum design and successful manufacture of these electro-active materials invariably necessitate accompanying quantitative computational analyses of the products that commonly possess complex geometries and exhibit dissipative response. In particular, viscous effects or electric polarizations result in hysteresis phenomena at large strains and rotations. Obviously, electro-active materials are not restricted to man-made products like electro-active polymers, but also cover a wide range of bio-materials such as heart muscle. The computational modeling of electro-active biological tissue plays a key role in guiding patient-specific therapies such as surgical operations, novel stem cell-based treatments of infarcted cardiac tissue when the experimental techniques fall short. Advances in computational modeling of these seemingly distinct classes of materials can, of course, mutually and positively influence each other towards the development of artificial organs and design of bio-inspired functionally-optimized high-tech devices.

This mini-symposium aims to gather researchers who have tackled the multi-physics problems of electo-active materials by providing a common discussion platform for exchanging ideas on the latest developments in the computational mechanics of electro-active synthetic and biological materials. 

Anna Ask (Lund U), A. Menzel (Lund U, TU Dortmund), M. Ristinmaa (Lund U): Modeling of electromechanical behavior of viscoelastic electrostrictive elastomers

Hüsnü Dal (TU Dresden), S. Göktepe (METU Ankara), M. Kaliske (TU Dresden), E. Kuhl (Stanford): A three-field, bi-domain approach to the strongly coupled electromechanics of the heart

Hernan De Santis (U Erlangen-Nuremberg), D. K. Vu (U Erlangen-Nuremberg), P. Steinmann (U Erlangen-Nuremberg): On the importance of free space for the simulation of EAPs

Daniele Rosato (U Stuttgart), C. Miehe (U Stuttgart): On the numerical modeling of dissipative phenomena in ferroelectric polymers at large strains

Jonathan Wong (U Stanford), S. Göktepe (METU Ankara), E. Kuhl (U Stanford): A monolithic electromechanical ionic model of cardiac tissue

Bai Xiang Xu (TU Kaiserslautern), M. Klassen (TU Kaiserslautern), D. Gross (TU Darmstadt), Ralf MĂĽller (TU Kaiserslautern): Design and optimization of soft dielectric actuators