Constitutive modelling of nonlinear viscoelastic behaviour for Poly (L-Lactic Acid) above glass transition

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Poly (L-Lactic Acid) (PLLA) has excellent bioresorbable properties and applied in manufacturing Bioresorbable Vascular Scaffold (BVS). In order to improve the mechanical performance of PLLA BVS, biaxial orientation via stretch blow moulding process has been introduced to present products with thinner but stronger struts. In order to better understand this deformation process above the glass transition, the mechanical behaviour of amorphous PLLA materials was obtained by biaxial stretch testing under displacement controlled conditions. The Glass-Rubber (GR) constitutive model was adopted to simulate its nonlinear viscoelastic behaviour and showed its ability for the simulation of blow forming process.

Original languageEnglish
Title of host publicationConstitutive Models for Rubber X - Proceedings of the 10th European Conference on Constitutive Models for Rubber, ECCMR X 2017
EditorsAlexander Lion, Michael Johlitz
PublisherCRC Press/Balkema
Pages483-488
Number of pages6
ISBN (Print)9781138030015
DOIs
Publication statusPublished - 01 Aug 2017
Event10th European Conference on Constitutive Models for Rubber, ECCMR X 2017 - Munich, Germany
Duration: 28 Aug 201731 Aug 2017

Publication series

NameConstitutive Models for Rubber X - Proceedings of the 10th European Conference on Constitutive Models for Rubber, ECCMR X 2017

Conference

Conference10th European Conference on Constitutive Models for Rubber, ECCMR X 2017
CountryGermany
CityMunich
Period28/08/201731/08/2017

ASJC Scopus subject areas

  • Polymers and Plastics

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