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ENEBI 2022
VII Encontro Nacional de Engenharia Biomecânica
THE INFLUENCE OF THE VISCOUS PHENOMENON ON THE MECHANICAL PERFORMANCE OF A KNEE LIGAMENT
Submission Author:
Paulo Pedro Kenedi , RJ , Brazil
Co-Authors:
Bruno Mello Silveira, Stephanie Barros, Rodrigo Ribeiro Pinho Rodarte, Paulo Pedro Kenedi
Presenter: Bruno Mello Silveira
doi://10.26678/ABCM.ENEBI2022.EEB22-0070
Abstract
The proper mechanical description of the mechanical performance of knee ligaments depends on the right modeling of its constitutive relationships. This research aims to analyze the viscoelastic behavior of porcine anterior cruciate ligament, through the realization of relaxations tests, for 3, 4, 5 and 6% of imposed strain. To accomplish this objective, a numeric model, based in Schapery’s equations, was implemented using both, C# programming language and MATLAB software. The numerical implementation of Schapery’s model, through the obtainment of the constants for Schapery’s equations, successfully reproduced the results of stress evolution of experimental relaxation tests in porcine anterior cruciate ligament. The numerical data fits with the experimental ones with a maximum error of approximately 3%.
Keywords
knee ligaments, viscoelasticity, Schapery
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