Assessment of the viscoelastic mechanical properties of polycarbonate urethane for medical devices.
J Mech Behav Biomed Mater
; 82: 1-8, 2018 06.
Article
em En
| MEDLINE
| ID: mdl-29554633
ABSTRACT
The underlying research work introduces a study of the mechanical properties of polycarbonate urethane (PCU), used in the construction of various medical devices. This comprises the discussion of a suitable material model, the application of elemental experiments to identify the related parameters and the numerical simulation of the applied experiments in order to calibrate and validate the mathematical model. In particular, the model of choice for the simulation of PCU response is the non-linear viscoelastic Bergström-Boyce material model, applied in the finite-element (FE) package Abaqus®. For the parameter identification, uniaxial tension and unconfined compression tests under in-laboratory physiological conditions were carried out. The geometry of the samples together with the applied loadings were simulated in Abaqus®, to insure the suitability of the modelling approach. The obtained parameters show a very good agreement between the numerical and the experimental results.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cimento de Policarboxilato
/
Uretana
/
Elasticidade
/
Equipamentos e Provisões
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article