Finite element modelling of high air pressure forming processes for polymer sheets

被引：10
|
作者：
Jiang, WG
Warby, MK
Whiteman, JR [1 ]
Abbott, S
Shorter, W
Warwick, P
Wright, T
Munro, A
Munro, B
机构：
[1] Brunel Univ, Brunel Inst Computat Math, Uxbridge UB8 3PH, Middx, England
[2] Autotype Int Ltd, Wantage OX12 7BZ, Oxon, England
[3] John McGavigan Ltd, Glasgow G64 2Q4, Lanark, Scotland
来源：
COMPUTATIONAL MECHANICS | 2003年 / 31卷 / 1-2期
关键词：
thermoforming; large elastic-plastic deformation; frictional contact;
D O I：
10.1007/s00466-002-0402-3
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
In this paper we describe the mathematical modelling and computational simulation of the high air pressure (HAP) thermoforming process which is used in the creation of thin walled polymeric structures. This involves, using data from material tests, an elastic-plastic constitutive equation valid for large deformations and a constrained deformation in which there is frictional contact between the polymeric sheet and a constraining surface (the mould surface). Despite a number of simplifying assumptions and some uncertainities in the mathematical model the finite element computations presented predict quite well the actual shape and thickness distribution which are found on sample products.
引用
收藏
页码：163 / 172
页数：10
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