Material and finite element analysis of poly(tetrafluoroethylene) rotary seals

被引：11
|
作者：
Li, W [1 ]
Mays, S [1 ]
Lam, D [1 ]
机构：
[1] Polymer Sealing Solut, Tewksbury GL20 8JS, Glos, England
来源：
PLASTICS RUBBER AND COMPOSITES | 2002年 / 31卷 / 08期
关键词：
D O I：
10.1179/146580102225004974
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
The stress strain characteristics of PTFE under uniaxial tension and compression have been measured at various temperatures. A new finite element analysis procedure using MARC is presented, which can simulate the different properties of PTFE from tension and compression data. This method is based on using the maximum principal stress value at the integration point of each element to define whether the element is under tension or compression at each increment, then using subroutines to specify the material properties. A positive value indicates a state of tension and a negative value indicates compression. It has been found that the finite element analysis results are in good agreement with those from experiment. Finally, a PTFE rotary seal was modelled using this new method, and results were obtained incorporating stress and lip loads of the rotary seal, with different temperature effects. (C) 2002 IoM Communications Ltd. Published by Maney for the Institute of Materials, Minerals and Mining.
引用
收藏
页码：359 / 363
页数：5
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