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A comparison between experiments and predictions for the blow molding of an industrial part
Author(s) -
Debbaut Benoît,
Homerin Olivier,
Jivraj Noor
Publication year - 1999
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.11575
Subject(s) - blow molding , materials science , viscoelasticity , bottle , rheology , molding (decorative) , representation (politics) , computer simulation , relaxation (psychology) , composite material , mechanics , mold , mechanical engineering , engineering , physics , psychology , social psychology , politics , political science , law
We present a numerical simulation for the blow molding of an industrial high density polyethylene part. The rheology of the polymeric material is described by means of an integral viscoelastic fluid model with a multi‐mode relaxation spectrum. A membrane element is applied for performing the blow molding simulation of geometrically complex objects such as a bottle with a handle; the motion governing equations are described by means of a Lagrangian representation. The contact between the parison and the moving mold is handled by means of a robust algorithm. The numerical tool is applied for the production of a bottle with a handle. The predicted results are compared with their experimental counterparts. In particular, we focus on the thickness distribution of the blow product.