iMechanica - Some notes on Luan and Robbin's papers on contact and adhesion at atomic scale - Comments

Has Adams done the Greenwood & Tripp with adhesion

Mike Ciavarella — Fri, 25 May 2007 05:33:25 -0400

No, I think those papers by Adams deal with the Greenwood & Williamson model, not the Greenwood & Tripp. In other words, there is no macroscopic (spherical)shape they consider. Thanks anyway. Mike

a full multiscale asperity model with adhesion

Liu — Tue, 10 Apr 2007 10:08:26 -0400

Hello Mike,

Greetings !

I enjoyed your postings very much. Thanks!

You mentioned that "the Greenwood and Tripp equivalent or a full multiscale version of asperity model with adhesion, not limited to the JKR" is highly desirable. This remind me a model developed by Adams et al.

Adams et al 2003 ASME J. Tribol. 125 700–8

Adams et al 2005 J. Phys. D: Appl. Phys. 38 1402-1409

Don't you think these models are what your meant?

multiscale contact

Mike Ciavarella — Mon, 19 Feb 2007 05:45:20 -0500

yes, Henry, there is quite a lot of literature. You can see some of this cited in my attachment. Did you read it? Regards, Mike

multiscale contact

Henry Tan — Sat, 17 Feb 2007 12:52:20 -0500

Contact is a multiscale process. Macroscopic contacts involve geometrical shapes, such as sphere-plane Hertzian contact. Mesoscopic contacts involve the surface roughness and asperity contact. Atomic scale contacts involve the tractions and repulsions between atoms of two bodies. Has anybody established a theory that links the contact at different scales?

Some notes on Luan and Robbin's papers on contact and adhesion at atomic scale

Mike Ciavarella — Fri, 16 Feb 2007 10:44:46 -0500

As I promised, I start with some brief notes on themes loved by Ken Johnson to hopefully raise some interest for discussion on iMechanica. Regards, Mike