Nonlinear modeling of active biohybrid materials
Prof. Luis Dorfmann (Tufts University Medford, MA )
Thursday 13th December, 2012 14:00-15:00 325
Recent advances in engineered muscle tissue attached to a synthetic substrate motivates the development of appropriate constitutive and numerical models. Applications of active materials can be expanded by using robust, non-mammalian muscle cells, such as those of Manduca sexta. In this talk we present a continuum model that accounts for the stimulation of muscle fibers by introducing multiple stress-free reference configurations and for the hysteretic response by specifying a pseudo-elastic energy function. A simple example representing uniaxial loading-unloading is used to validate and verify the characteristics of the model. Then, based on experimental data of muscular thin films, a more complex case shows the qualitative potential of Manduca muscle tissue in active biohybrid constructs.
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