Numerical simulation of plug-assisted thermoforming: Application to polystyrene

C. A. Bernard, J. P.M. Correia, N. Bahlouli, S. Ahzi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Citations (Scopus)


In the present work, the thickness distribution in a plug-assisted thermoforming process is investigated using finite element (FE) simulations. Numerical simulations have been performed with the FE code ABAQUS/Explicit. The contact between sheet and tools is considered as isothermal. Moreover, the coefficient of friction between plug and sheet is assumed constant. The behavior of the material is described by three hyperelastic laws available in the FE code. The comparison between experimental and FE results highlights that the neglected thermal effects (conduction and convection) and the thermal dependence of coefficient of friction should be considered. For future work, we propose an elasto-viscoplastic model which appears to better describe the behavior of the material than a hyperelastic model.

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
PublisherTrans Tech Publications Ltd
Number of pages9
ISBN (Print)9783037857199
Publication statusPublished - 2013
Event16th ESAFORM Conference on Material Forming, ESAFORM 2013 - Aveiro, Portugal
Duration: 2013 Apr 222013 Apr 24

Publication series

NameKey Engineering Materials
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795


Conference16th ESAFORM Conference on Material Forming, ESAFORM 2013


  • Finite element simulation
  • Hyperelasticity
  • Plug-assisted thermoforming
  • Polystyrene


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