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Computer simulation of thermoforming in complex shapes
Author(s) -
Kouba K.,
Bartos O.,
Vlachopoulos J.
Publication year - 1992
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.760321009
Subject(s) - thermoforming , finite element method , solver , ogden , slip (aerodynamics) , viscoelasticity , materials science , adaptive mesh refinement , computer science , mechanics , mechanical engineering , computational science , composite material , structural engineering , engineering , thermodynamics , physics , programming language
Abstract A finite element analysis of thermoforming based on the thin membrane approximation is presented. Triangular elements with adaptive mesh refinement are used to describe deformed shapes in complex geometries. Viscoelastic effects are assumed to be negligible, and Ogden's model is used to express the material response. The results are in good agreement with previous simulations and some experimental data available in the literature. The combination of adaptive mesh refinement near corners and edges, inclusion of slip or no‐slip conditions as required on mold walls, and an efficient equation solver allow simulation of thermoforming in complex geometrical shapes at reasonable computer times on a personal computer.