Prediction of optimal preform thickness distribution in blow molding.: An article from: Polymer Engineering and Science
Book Details
Author(s)D.K. Lee, S.K. Soh
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB00096KX70
ISBN-13978B00096KX78
AvailabilityAvailable for download now
MarketplaceUnited States 🇺🇸
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on June 15, 1996. The length of the article is 4450 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: A finite element optimization method is presented that determines the optimal thickness profile of a preform for a blow-molded part having the required wall thickness distribution. The optimization method is based on a method of feasible directions and the design variables are thicknesses of finite elements. The step size is determined by using a Brent 1-dimensional minimization method. Two methods for determining feasible directions are compared. A finite element model is formulated based on the thin membrane approximation, which relates the preform wall thickness distribution to the wall thickness distribution in the blow-molded part. Triangular or conical frustra elements are used to describe deformed shapes of the preform for 2-dimensional axisymmetric deformations. An incompressible nonlinear elastic constitutive model describes the material response. The accuracy of the finite element model used is evaluated by comparing the model predictions to published experimental data and computer simulations.
Citation Details
Title: Prediction of optimal preform thickness distribution in blow molding.
Author: D.K. Lee
Publication:Polymer Engineering and Science (Refereed)
Date: June 15, 1996
Publisher: Society of Plastics Engineers, Inc.
Volume: v36 Issue: n11 Page: p1513(8)
Distributed by Thomson Gale
From the author: A finite element optimization method is presented that determines the optimal thickness profile of a preform for a blow-molded part having the required wall thickness distribution. The optimization method is based on a method of feasible directions and the design variables are thicknesses of finite elements. The step size is determined by using a Brent 1-dimensional minimization method. Two methods for determining feasible directions are compared. A finite element model is formulated based on the thin membrane approximation, which relates the preform wall thickness distribution to the wall thickness distribution in the blow-molded part. Triangular or conical frustra elements are used to describe deformed shapes of the preform for 2-dimensional axisymmetric deformations. An incompressible nonlinear elastic constitutive model describes the material response. The accuracy of the finite element model used is evaluated by comparing the model predictions to published experimental data and computer simulations.
Citation Details
Title: Prediction of optimal preform thickness distribution in blow molding.
Author: D.K. Lee
Publication:Polymer Engineering and Science (Refereed)
Date: June 15, 1996
Publisher: Society of Plastics Engineers, Inc.
Volume: v36 Issue: n11 Page: p1513(8)
Distributed by Thomson Gale
