Friday, January 23, 2009

Self-contact in rubber/foam components: rubber gasket

This example demonstrates the use of the single-surface contact capability available for two-dimensional large-sliding analysis. Components that deform and change their shape substantially can fold and have different parts of the surface come into contact with each other. In such cases it can be difficult to predict at the outset of the analysis where such contact may occur and, therefore, it can be difficult to define two independent surfaces to make up a contact pair.
This model is used to analyze an oil pan gasket, which enhances the sealing of the oil pan against the engine block. The primary objective is to reach or exceed a threshold value of contact pressure where oil will not leak at the gasket bead/cover/engine block interfaces.

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