An approximate JKR solution for a general contact, including rough contacts
Available online 5 March 2018
adhesion
A web site APP for rough contact adhesion from simple Ciavarella BAM model
See online App for rough contact adhesion based on the BAM model of Ciavarella
http://www.tribonet.org/adhesion-calculator-for-rough-surfaces-bearing-…
A recent PNAS paper explained! FRACTURE MECHANICS SIMPLE CALCULATIONS TO EXPLAIN SMALL REDUCTION OF THE REAL CONTACT AREA UNDER SHEAR
If you have seen the very nice PNAS paper which just appeared
Sahli, R., Pallares, G., Ducottet, C., Ben Ali, I.E., Al Akhrass, S., Guibert, M., Scheibert, J., 2018, Evolution of real contact area under shear, Proceedings of the National Academy of Sciences, 115(3), pp. 471-476.
Here we provide a simple explanation.
FACTA UNIVERSITATIS
Series: Mechanical Engineering
DOI: 10.22190/FUME180108007C
Short Communication
FRACTURE MECHANICS SIMPLE CALCULATIONS TO EXPLAIN SMALL REDUCTION OF THE REAL CONTACT AREA UNDER SHEAR
UDC 539.6
Partial constraint singularities in elastic rods
We present a unified classical treatment of partially constrained elastic rods. Partial constraints often entail singularities in both shapes and reactions. Our approach encompasses both sleeve and adhesion problems, and provides simple and unambiguous derivations of counterintuitive results in the literature. Relationships between reaction forces and moments, geometry, and adhesion energies follow from the balance of energy during quasistatic motion. We also relate our approach to the configurational balance of material momentum and the concept of a driving traction.
An inspiring seminar by Prof. Huajian Gao -- Mechanics as an Enabling tool in bioinspired materials and biological interactions of nanomaterials
Professor Huajian Gao of Brown University speaks at MIT Distinguished Seminar Series (March 2016).
It is a unique opportunity to enjoy the many important recent achievements of Huajian's group.
Mechanics as an Enabling tool in bioinspired materials and biological interactions of nanomaterials
Here.
Not to be missed!
Papangelo's criterion for stickiness of rough (hard) random surfaces
A generalized Johnson parameter for pull-off decay in the adhesion of rough surfaces
A generalized Johnson parameter for pull-off decay in the adhesion of rough surfaces
Article in Physical Mesomechanics · December
Authors: Michele Ciavarella, Antonio Papangelo
Abstract:
Some Closed-Form Results for Adhesive Rough Contacts Near Complete Contact on Loading and Unloading in the Johnson, Kendall, and Roberts Regime
Michele Ciavarella Yang Xu Robert L. Jackson
Some Closed-Form Results for Adhesive Rough Contacts Near Complete Contact on Loading and Unloading in the Johnson, Kendall, and Roberts Regime
Journal of Tribology Copyright VC 2018 by ASME JANUARY 2018, Vol. 140 / 011402-1
Recently, generalizing the solution of the adhesiveless random rough contact proposed
by Xu, Jackson, and Marghitu (XJM model), the first author has obtained a model for