The role of multifield theories in the modelling of active materials

Massimiliano Gei; Lorenzo Magnarelli

doi:10.1117/12.658787

17 March 2006 The role of multifield theories in the modelling of active materials

Massimiliano Gei, Lorenzo Magnarelli

Proceedings Volume 6168, Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD); 61680J (2006) https://doi.org/10.1117/12.658787
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

Abstract

Multifield theories are powerful frameworks able to manage complexities arising in the modelling of physical phenomena. In the mechanics of active materials a multifield theory, consisting in balance and constitutive equations, may be constructed by assigning to each point of the solid an additional parameter (the morphological descriptor) which accounts for the activation mechanisms at the level of microstructure. The main elements of multifield theory applied to continuum mechanics are given. The relevant equations of the problem of a cantilever beam of conductive polymer subject to flux of ions are reported to show the coupling between chemical (ion concentration) and mechanical behaviour (end deflection).

Citation Download Citation

Massimiliano Gei and Lorenzo Magnarelli "The role of multifield theories in the modelling of active materials", Proc. SPIE 6168, Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD), 61680J (17 March 2006); https://doi.org/10.1117/12.658787

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