Title

Finite element analys is of thermomechanical contact of an elas tomeric O-ring seal

Abstract

This study concerns the development of a finite element model to support design improvements in elastomeric seals subject to high temperature and pressure, such as in aircraft engines. Existing finite element codes familiar to the authors do not couple thermal and mechanical fields. nor do they implement thermomechanical contact models suitable for highly deformable materials. Recently, the authors have introduced a thermohyperelastic constitutive model for near-incompressible elastomers. In two subsequent studies, using the constitutive model, a method has been introduced for finite element analysis of coupled thermomechanical response, including boundary contributions due to large deformation and variable contact. A new thermomechanical contact model has also been introduced to accommodate the softness of elastomers. The method has been implemented in a special purpose code which concerns a seal compressed into a well. Several computations are used to validate the code. Simulations of a seal in an idealized geometry indicate rapid pressure increase with increasing compression and temperature.

Publication Date

1-1-1997

Publication Title

Proceedings of the ASME Turbo Expo

Volume

4

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1115/97-GT-106

Socpus ID

84973598729 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84973598729

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