Analysis and simulation of the free-stretch-blow process of PET

J. Nixon, S. Yan, G. H. Menary*

*Corresponding author for this work

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

4 Citations (Scopus)


This paper is concerned with understanding the behaviour of Polyethylene Terephthalate (PET) in the injection stretch blow moulding (ISBM) process where it is typically bi-axially stretched to form bottles for the packaging industry. Preforms which have been pre sprayed with a pattern and heated in an oil bath have been stretched and blown in free air using a lab scale ISBM machine whilst being monitored via high speed video. The images have subsequently been analysed using a digital image correlation system (VIC 3D). The results have been used to validate appropriate simulations of the free-blow process using ABAQUS®/Explicit FEA with a suitable viscoelastic material model, along with experimental process data obtained using an instrumented stretch rod.

Original languageEnglish
Title of host publicationThe Current State-of-the-Art on Material Forming
Subtitle of host publicationNumerical and Experimental Approaches at Different Length-Scales
Number of pages9
Publication statusPublished - 29 Jul 2013
Event16th ESAFORM Conference on Material Forming, ESAFORM 2013 - Aveiro, Portugal
Duration: 22 Apr 201324 Apr 2013

Publication series

NameKey Engineering Materials
ISSN (Print)1013-9826


Conference16th ESAFORM Conference on Material Forming, ESAFORM 2013


  • Abaqus®/explicit fea
  • Digital image correlation
  • ISBM
  • Pet
  • Viscoelastic

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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