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How to simulate the wear in dynamic friction ?

Posted Mar 7, 2022, 4:27 a.m. EST Structural & Acoustics Version 5.6 1 Reply

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I have read the case of "Disc Brake Pad Wear" in the offical website. It says "By adding a Slip Velocity subnode to the Contact node, you can solve for dynamic friction forces even in a stationary study." But what if I want to simulate a dynamic friction situation, for example, a ball slides across a steel surface and leaves a long worn mark, how can the Comsol acheive this?

1 Reply Last Post Mar 7, 2022, 8:19 a.m. EST
Henrik Sönnerlind COMSOL Employee

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Posted: 3 years ago Mar 7, 2022, 8:19 a.m. EST

You just use the ordinary Friction node, combined with Wear. The Slip Velocity is a convenience utility for stationary analysis.

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Henrik Sönnerlind
COMSOL
You just use the ordinary *Friction* node, combined with *Wear*. The *Slip Velocity* is a convenience utility for stationary analysis.

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