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aprakash77's picture

USNCCM-11 Mini-symposium on "Multi-scale modeling in contact mechanics"

Dear Colleagues,

I would like to bring to your notice the mini-symposium on "Multi-scale modeling in contact mechanics" at the 11th US National Congress on Computational Mechanics (http://usnccm.org/). The conference will be held at Minneapolis, Minnesota from July 25-29, 2011.

 

CONTACT version 10.2 released

Dear all,

Herewith I want to announc the release of CONTACT version 10.2.

The main changes with respect to earlier versions of the program are as follows:

Programme of the CONTACT course now available

Dear all,

 The programme for the course on "Contact mechanics with the CONTACT software", to be held October 28th-29th 2010 in Delft, the Netherlands, is now available via the registration form on our website www.kalkersoftware.org.

Best regards,

Edwin Vollebregt

 

Course on contact mechanics with the CONTACT software

Dear all,

 On Thursday 28th and Friday 29th of October 2010, we will organise a course on using the CONTACT software at Delft University of Technology in the Netherlands.

The aims of the course are:

Hirschberger's picture

1st MUSIC Summer School on "Multiscale and Multiphysics Modelling of Interfaces"

The Graduate School MUSIC (Multiscale Methods for Interface Coupling) invites to its first Summer School on Multiscale and Multiphysics Modelling of Interfaces at Leibniz Universitaet Hannover, Germany, from 15 to 17 September 2010.

ALE (Arbitrary Lagrangian-Eulerian) mesh adaptivity in ABAQUS/Standard

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Dears,

 I'm doing some numerical analysis on penetration of infra-strucutres on soils (such as CPT tests) in ABAQUS/CAE .. what I'm recently challenging with is to overcome the element excessive distorsion due to large deformations... I have to apply contact constraints in my model...I would appreciate it if you share your expriences with me regarding the following tips:

1- Is it possible to use the ALE (Arbitrary Lagrangian-Eulerian) mesh adaptivity in ABAQUS/Standard? If yes, do you know of any accessible examples (.cae files) or references?

Announcing free version of Kalker's rolling contact model

Dear all,

Herewith I would like to announce that we have decided to make our CONTACT software publicly available. You can obtain a free copy at the web-site www.kalkersoftware.org. We hope that the software is beneficial to you. We further hope that you give us helpful feedback in return.

marco.paggi's picture

ECCM 2010 Minisymposium on Fracture and Contact Mechanics for Interface Problems - Paris, France, May 16-21 2010

Dear Colleague,
the IV European Conference on Computational Mechanics-ECCM 2010, Solids, Structures and Coupled Problems in Engineering, organized by ECCOMAS, will take place in Paris, France, May 16-21 2010 (see the Congress website
http://www.eccm2010.org/  for more information).
During this conference, we are organizing a Minisymposium entitled:
 

Surface Energies? Continuum Molecular Dynamics?

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I recently encountered the research of Phil Attard and others, in which the contact problem is solved, relaxing the restrictions of the traditional contact models (Hertz, JKR, DMT) and solving based on a formulation where the governing equations are derived using finite-range surface forces and calculated numerically, self-consistently.

Max penetration error in ABAQUS

I am doing contact simulation of soft material. I want to change the default criterion for max penetration error, but can't seem to find how to do it. I tried contact controls relative and absolute penetration tolerances, hcrit but that did not affect the error criterion. Can someone help me please?

Mike Ciavarella's picture

a couple of recently published papers in contact mechanics -- roughness and dynamic rolling

For those interested in a classical subject like contact mechanics, here are a couple of recent papers published in August.  One is an extension of the Greenwood Williamson theory of rough contact, and the other is a linear perturbation solution of the classical Carter rolling contact problem for a rolling cylinder, when the surface is corrugated and hence there are oscillations in both normal and tangential loads.

Mike Ciavarella's picture

ADVANCES IN CONTACT MECHANICS : A TRIBUTE TO JJ KALKER DELFT 22/24 OCTOBER

 

http://www.contactmechanics.org/

Delft 22 - 24 October

Chairmen:    

Tom Scarpas     Delft University of Technology, The Netherlands

Patrick Selvadurai     McGill University, Canada

Mike Ciavarella's picture

Rail corrugation: ”one hundred years of solitude”? or a true enigma?

You may remember that I promised some time ago to discuss each of the topics mentioned by Ken Johnson in his Timoshenko Medal speach. Here I take rail corrugation. Rail corrugation has been noticed at least for 100 years, but (particularly short pitch one in the range 20÷80 mm) has been considered an enigma because measured corrugation wavelength did not relate well with wear instabilitymodels.

vh's picture

Predictive modeling schemes for wear in tribometers

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Study of wear in complex micro-mechanical components is often accomplished experimentally using a pin-
on-disc and twin-disc tribometer. The present paper proposes an approach that involves a computationally
efficient incremental implementation of Archard’s wear model on the global scale for modeling sliding and
slipping wear in such experiments. It will be shown that this fast simplistic numerical tool can be used to
identify the wear coefficient from pin-on-disc experimental data and also predict the wear depths within a

MichelleLOyen's picture

Adhesion in viscoelastic contacts

Yesterday I had the distinct pleasure of seeing a mechanics seminar delivered "tag-team" by Ken Johnson and Jim Greenwood. (I know several people have thought I was a bit mad for jumping "across the pond" but there are really some amazing benefits of being part of the Cambridge Engineering faculty!)

Mike Ciavarella's picture

clever load normalization parameters for hip joint prosthesis

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A normalising loading parameter useful in summarising the mechanical response of plane, pin in plate-like contacts is extended to axisymmetric, ball in socket-like contacts. Various diagrams reporting

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