报告主题：Multiphysics modelling of soft materials – results and future outlooks
报 告 人：Stepa Paunovich 副教授（塞尔维亚科学与艺术院）
报告时间：2025年10月29日 下午3：00
报告地点：江宁校区乐学楼1116
主办单位：力学与工程科学学院
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报告简介：
The research is primarily done in the field of coupled-field problems, mostly dealing with mechanical and mathematical modelling of complex and active soft materials undergoing large deformation due to different kinds of stimuli. Analysed examples include diffusion of ion species through a hydrogel due to a varying electric field, large viscoelastic deformation of dielectric liquid crystal elastomers that change their microstructure in accordance to the applied electric field, and magnetostriction of viscoelastic soft magnetorheological elastomers. All the models include finite strain viscoelasticity coupled with electric field, magnetic field and/or chemical diffusion, leading to strongly coupled multiphysics problems and the main focus of our research group, with emphasis on potential applications as actuators or sensors in soft robotics. Also, it will be shown how fractional calculus and non-integer order derivative models have been used to improve the efficiency of the presented models, while also providing some outlines and future outlooks for possible further research in this area.
报告人简介：
Stepa Paunovich, he has published 30 papers in scientific journals and 17 scientific conference contributions in the field of structural dynamics, metamaterials and advanced numerical modelling in civil engineering. He is a part of a research group in Nish, Serbia, which is currently focused mostly on research of soft active materials, by using the framework of continuum mechanics. His main research interest lies with coupled-field problems and multiphysics phenomena, especially dealing with magnetic actuation of magnetorheological elastomers and developing thermodynamically consistent mechanical and mathematical models for describing this type of materials, that also involve the use of fractional order derivatives.
