Evaluation of residual thermally induced stresses in the cooling of polymer melt via transfinite element computations

K. K. Tamma, S. B. Railkar

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

The present paper describes the evaluation of nonlinear thermally induced residual stresses in the cooling of polymer melt during injection molding of plastic components. The computational methodology adopted is based on the transfinite element approach, which is a hybrid scheme as it combines transform methods and classical Galerkin schemes with finite element formulations to preserve the modeling versatility. The applicability of the proposed formulations for understanding the physics and the nature of the nonlinear thermally induced stresses in the solidifying process of a sample amorphous polystyrene specimen demonstrates the basic capabilities and potential of the methodology. Results obtained agree qualitatively well with earlier research studies and experimental findings relevant to thermally induced residual stresses in the injection molding of plastic components.

Original languageEnglish (US)
Pages (from-to)100-106
Number of pages7
JournalPolymer Engineering & Science
Volume29
Issue number2
DOIs
StatePublished - Jan 1989

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