| Autor: |
Ramzanpour, Mohammadreza, Hosseini-Farid, Mohammad, Ziejewski, Mariusz, Karami, Ghodrat |
| Předmět: |
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| Zdroj: |
International Journal for Computational Methods in Engineering Science & Mechanics; 2020, Vol. 21 Issue 4, p169-184, 16p |
| Abstrakt: |
A constrained particle swarm optimization algorithm (C-PSO) is introduced and modified for hyperelastic and visco-hyperelastic characterization of bovine brain tissue at three different strain rates. Using the elasticity compatibility and Drucker's stability criterion, the constraints of the hyperelastic and visco-hyperelastic models are identified and implemented in the C-PSO algorithm and its performance is compared with the classic curve fitting algorithms including Levenberg-Marquardt and trust region reflective. The accuracy of the C-PSO was found to be superior for visco-hyperelastic characterization, as for some strain rates, the trust region reflective algorithm failed to provide a reasonable approximation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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