Coupling between a fiber-reinforced model and a Hill-based contractile model for passive and active tissue properties
Ngoc Pham1, Qian Xue1, Xudong Zheng1
1Department of Mechanical Engineering, University of Maine, Orono, Maine 04473, USA ngoc.h.pham@maine.edu, qian.xue@maine.edu, xudong.zheng@maine.edu.
Abstract:
In this work, a three-dimensional fiber-reinforced model was used to simulate passive stress response of vocal fold muscle tissue undergoing a series of isometric force measurement and a dynamic stretching. It was found that, with proper material constants, the fiber-reinforced model is able to reproduce literature data with acceptable deviation. A Hill-based contractile model was then coupled with the fiber-reinforced model to enable simulations of stretching-induced and activation-induced stress at the same time. For dynamic, concurrent tissue stimulation and stretching, the coupled model demonstrated a good agreement with past experimental data.
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