Journal ArticleDOI
The Elastic Contact of Rough Spheres
J. A. Greenwood,J. H. Tripp +1 more
TLDR
In this article, the Hertzian theory of elastic contact between spheres is extended by considering one of the spheres to be rough, so that contact occurs, as in practice, at a number of discrete microcontacts.Abstract:
The Hertzian theory of elastic contact between spheres is extended by considering one of the spheres to be rough, so that contact occurs, as in practice, at a number of discrete microcontacts. It is found that the Hertzian results are valid at sufficiently high loads, but at lower loads the effective pressure distribution is much lower and extends much further than for smooth surfaces. The relevance to the physical-contact theory of friction and electric contact is considered.read more
Citations
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Journal ArticleDOI
Indentation fracture: principles and applications
Brian R. Lawn,Rodney Wilshaw +1 more
TL;DR: The basic principles and practical applications of indentation fracture are reviewed in this article, with a focus on the application of fracture fracture in the field of orthogonal fracture repair and alignment.
Journal ArticleDOI
The correlation of indentation experiments
TL;DR: In this article, a simplified theoretical model of this behaviour is obtained by extending R. Hill's theory of expanding a cylindrical or spherical cavity in an elastic-plastic material to ensure compatibility between the volume of material displaced by the indenter and that accommodated by elastic expansion.
Journal ArticleDOI
An Asperity Microcontact Model Incorporating the Transition From Elastic Deformation to Fully Plastic Flow
TL;DR: In this article, an elastic-plastic asperity microcontact model for contact between two nominally flat surfaces is presented, where the transition from elastic deformation to fully plastic flow of the contacting as perity is modeled based on contact-mechanics theories in conjunction with the continuity and smoothness of variables across different modes of deformation.
Journal ArticleDOI
Tribology of polymers: Adhesion, friction, wear, and mass-transfer
TL;DR: In this article, the authors reviewed the behavior of polymers from the mid-20th century to the present day and determined the surface energy of different coatings with new contact adhesion meter.
Journal ArticleDOI
A numerical method for solving rough contact problems based on the multi-level multi-summation and conjugate gradient techniques
I. A. Polonsky,Leon M. Keer +1 more
TL;DR: An alternative numerical method for solving contact problems for real rough surfaces using a single-loop iteration scheme based on the conjugate gradient method, which converges for arbitrary rough surfaces.