Validating injection stretch-blow molding simulation through free blow trials.(Report): An article from: Polymer Engineering and Science

This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on May 1, 2010. The length of the article is 6643 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser.

From the author: A 2D isothermal finite element simulation of the injection stretch-blow molding (ISBM) process for polyethylene terephthalate (PET) containers has been developed through the commercial finite element package ABA-QUS/standard. In this work, the blowing air to inflate the PET preform was modeled through two different approaches: a direct pressure input (as measured in the blowing machine) and a constant mass flow rate input (based on a pressure-volume-time relationship). The results from these two approaches were validated against free blow and free stretch-blow experiments, which were instrumented and monitored through highspeed video. Results show that simulation using a constant mass flow rate approach gave a better prediction of volume vs. time curve and preform shape evolution when compared with the direct pressure approach and hence is more appropriate in modeling the pre-blowing stage in the injection stretch-blow molding process. POLYM. ENG. SCI., 50:1047-1057, 2010. [C] 2010 Society of Plastics Engineers

Citation Details
Title: Validating injection stretch-blow molding simulation through free blow trials.(Report)
Author: G.H. Menary
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: May 1, 2010
Publisher: Society of Plastics Engineers, Inc.
Volume: 50 Issue: 5 Page: 1047(11)

Article Type: Report

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