Simple extension of Lemaitre's elastoplastic damage model to account for hydrolytic degradation

Being motivated by the technological applications of bioabsorbable polymeric materials in the fields of biomechanics and medicine, this paper presents a simple but efficient extension of Lemaitre's elastoplastic damage model by incorporating a chemical-based (hydrolysis) degradation term. The a...

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Bibliographic Details
Published in:	Latin American journal of solids and structures Vol. 11; no. 5; pp. 884 - 906
Main Authors:	Fancello, Eduardo A., Lindenmeyer, Leandro P., Roesler, Carlos R. M., Salmoria, Gean V.
Format:	Journal Article
Language:	English
Published:	Associação Brasileira de Ciências Mecânicas 01-10-2014 Marcílio Alves
Subjects:	Bioabsorbable polymers elastoplastic damage ENGINEERING, CIVIL ENGINEERING, MECHANICAL hydrolytic degradation MECHANICS elastoplastic damage hydrolytic degradation Bioabsorbable polymers
Online Access:	Get full text
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Summary:	Being motivated by the technological applications of bioabsorbable polymeric materials in the fields of biomechanics and medicine, this paper presents a simple but efficient extension of Lemaitre's elastoplastic damage model by incorporating a chemical-based (hydrolysis) degradation term. The aim is to allow the simulation of devices subjected to both mechanical and chemical environments. The model applicability is tested by a set of numerical finite-element examples. The encouraging results show expected adequate coupling between the elastoplastic and chemical damages. Although the model is presently restricted to linear kinematics, the basic idea can be extended to finite strains.
ISSN:	1679-7825 1679-7825
DOI:	10.1590/S1679-78252014000500010