Abstract
Tribological modeling of elastomeric parts has high importance in engineering practice due to their widespread industrial use. Generally, the experimental investigation of the wear behavior is time consuming and expensive, which led to the development of numerical techniques. The common finite element method (FEM) based wear simulation techniques are usually limited to the top layer of the elements in the FE mesh. This can be insufficient in case of elastomers because of their high deformation.In order to model wear that is larger than the elements of the FE mesh, a wear simulation procedure was developed using global remeshing. By this new wear simulation technique, a reciprocating sliding seal was analyzed. Contact pressure distribution as well as the resultant sealing force was evaluated during the wear process. It was concluded that the wear reduced the contact pressure peaks along the ridges of the reciprocating seal. Around the lip similar tendencies were obtained during the simulated wear process. The results showed that the method is suitable for modeling wear even if it is three times larger than the element size in the vicinity of the contact area.
Highlights
Even though tribology is traditionally an experimental science, in the last decades the numerical simulation of tribological processes, like wear became popular
Firstly the contact pressure distribution is determined by finite element method (FEM) and the nodal wear increments are calculated from the wear equation of Archard [5]
It can be seen that the contact area is reduced: only five ridges on the left side, one on the right side and the lip are in contact with the rod
Summary
Even though tribology is traditionally an experimental science, in the last decades the numerical simulation of tribological processes, like wear became popular. Serre et al in [1] used the boundary element method (BEM) to determine the contact pressure distribution for further wear calculations.
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