Key result
MOOSE-based finite element modeling accurately simulated neo-Hookean hyperelastic materials and predicted the response of a real soft pneumatic actuator with excellent agreement to theoretical results.
Why the study?
Accurate modeling of large deformations of soft hyperelastic materials remains a challenge in soft robotics.
The open-source MOOSE environment can accurately model large deformations in soft robotics, allowing users to tailor simulation accuracy, convergence, and speed.
May facilitate soft actuator design for cardiovascular devices; hypothesis-generating and requires validation before clinical translation.
While soft robotics is an emerging frontier of the robotics field, the accurate modeling of large deformations of soft hyperelastic materials remains a challenge. Herein, we build on the existing open-source Multiphysics Object Oriented Simulation Environment (MOOSE) to accurately model neo-Hookean hyperelastic materials under user-defined loads and large strains. Excellent agreement between the simulated and theoretical results is obtained for simple geometries. Next, we show that the application can accurately model and predict the response of a real, soft pneumatic actuator. To conclude, the advantages of the open-source nature of our simulation environment are shown by demonstrating how direct control over many simulation parameters can allow users to tailor the accuracy, convergence, and speed of their simulations.
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Wandke et al. (2021) studied this question. MOOSE-based finite element hyperelastic modeling vs. Theoretical results was evaluated on Accuracy of modeling neo-Hookean hyperelastic materials and predicting response of a soft pneumatic actuator. MOOSE-based finite element modeling accurately simulated neo-Hookean hyperelastic materials and predicted the response of a real soft pneumatic actuator with excellent agreement to theoretical results.
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