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marco.paggi's picture

CISM course ''Modelling and Simulation of Tribological Problems in Technology''

Advanced Course at the International Centre for Mechanical Sciences (CISM, Udine, Italy)

 

Modelling and Simulation of Tribological Problems in Technology

May 28, 2018 — June 1, 2018 

Coordinators:

Marco Paggi (IMT School for Advanced Studies Lucca, Lucca, Italy)

David A. Hills (University of Oxford, Oxford, Great Britain)

marco.paggi's picture

Contact in soft tissues

Dear Colleague,  the III International Conference on Biomedical Technology (ICBT 2017, an Eccomas conference) will be held in Hannover (Germany) from November 6th to 8th, 2017.

marco.paggi's picture

Mini-symposium at ICF14 on "Fracture and contact in multiphysics problems: from energy to biological applications"

Dear Colleague,

I kindly inform you that, in the framework of the 14th International
Conference on Fracture (ICF14), to be held in Rhodes, Greece, June 18-23,
2017, we are organizing a mini-symposium on "Fracture and contact in
multiphysics problems: from energy to biological applications".

If you are interested, please submit your two-page abstract through the
ICF14 website (www.icf14.org) by October 31, 2016, selecting our
mini-symposium.

Eran Bouchbinder's picture

Dynamic instabilities of frictional sliding at a bimaterial interface

Understanding the dynamic stability of bodies in frictional contact steadily sliding one over the other is of basic interest in various disciplines such as physics, solid mechanics, materials science and geophysics. Here we report on a two-dimensional linear stability analysis of a deformable solid of a finite height H, steadily sliding on top of a rigid solid within a generic rate-and-state friction type constitutive framework, fully accounting for elastodynamic effects.

ACM2015 : International Conference on Advances in Applied and Computational Mechanics ,5-7 August 2015, Izmir/Turkey

We are proud to announce International Conference on Advances in Applied and Computational Mechanics, which is organized in the honor of  70th birthday of Prof.J.N.Reddy. This is a tribute for his many and lasting contribution to education and research in applied mechanics.

 

Conference will be held at  WYNDHAM GRAND Hotel, Inciralti Izmir/Turkey during August 5-7, 2015. 

marco.paggi's picture

MUSAM - Multi-scale Analysis of Materials - Annual report 2014

Dear Colleague,

 

I would like to inform you that the annual report on the scientific and educational activities carried out by the research unit MUSAM on Multi-scale Analysis of Materials at IMT Lucca during 2014 can be downloaded from the following link:

 

Vladislav Yastrebov's picture

PhD position in computational contact mechanics

We are looking for a student to work on the topic "Development of advanced numerical methods in contact mechanics for aerospace applications"

marco.paggi's picture

EUROMECH Colloquium 575 on Contact Mechanics and Coupled Problems in Surface Phenomena

Dear Colleague,
  we would like to inform you that the EUROMECH Colloquium 575 on “Contact Mechanics and Coupled Problems in Surface Phenomena” will take place in the IMT Institute for Advanced Studies Lucca (Lucca, Italy) from March 30, 2015 to April 2, 2015.  

Have someone met a strange behavior of Load-Displacement curve in a simple 2D indentation problem

I am modelling a very simple 2D contact problem between a rigid wedge indenter and a deformable squared-shape specimen (general steel material) in frictionless contact case. I used an implicit function f to describe the rigid indenter.

I implemented Lagrange multiplier method for this contact problem and the contact condition is: Inside the contact zone of the deformable specimen, the node set is active if f(node)<=0 and the Lagrange multiplier lambda<=0.

Can someone explain the strange physical behavior in contact problem using Lagrange method in modeling a simple 2D indentation?

I am modelling a very simple 2D contact problem between a rigid indenter and a deformable squared-shape specimen. I used a implicit function f to describe the rigid indenter. 
The contact condition is: Inside the contact zone of the deformable specimen, a node n is outside of rigid indenter for f(n)>0, and inside for f(n)<0. In case f(n)=0, the contacting node lies on the surface of the rigid body.

Large deformation spherical (hertz) contact simulation

Free Tags: 

Hello Everyone,

I am simulating contact of a sphere with a soft elastomer (Hertz contact). Unlike the hertz contact, I will like to simulate large deformations. My model is a 2D axisymmetric model and the load is displacement controlled. The current model fails at total time/freq ~ 0.84. I have tried refining my mesh and have reduced the increment size and increased the number of increments. Currently, step my parameters are:

 Max. number of increments: 200000 and Increment size:0.005/1E-5/0.01

 Nlgeom is On because of the large deformation.

Problem Modeling JKR contact using Abaqus

Hello Everyone,

I have been working on solving contact problems relating to fibrillar adhesives over the past 3 yrs of my PhD work. In the past, I used Comsol FEM to model contact interactions by implementing the Dugdale-Barenblatt traction separation law at the contact interface. 

Next CONTACT-course in december 2013

Dear all,

On Tuesday December 3rd to Thursday December 5th, 2013, we will organise a course on rolling contact mechanics using the CONTACT software at Delft University of Technology in the Netherlands.

The aims of the course are:

Frictional rolling contact model CONTACT version 13.1 released

Dear all,

Herewith I want to announce the release of the frictional rolling contact model CONTACT version 13.1.

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

Laura De Lorenzis's picture

Post-doc position at the TU Braunschweig within ERC StG "INTERFACES"

One Post-Doc position is now available at the Institut für Angewandte Mechanik of the Technische Universität Braunschweig, Germany, within the ERC Starting Researcher Grant "INTERFACES". The position is a full-time fixed-term position for 2 years with the possibility of renewal.

Laura De Lorenzis's picture

PhD and Post-Doc positions in Computational Mechanics at the Technische Universität Braunschweig, Germany

PhD and Post-Doc positions are now available at the Institut für Angewandte Mechanik of the Technische Universität Braunschweig, Germany. Both are full-time fixed-term positions for 2 years with the possibility of renewal.

Laura De Lorenzis's picture

PhD positions in Computational Mechanics at the University of Salento in Lecce, Italy

3 PhD positions are now available at the Department of Innovation Engineering at the University of Salento in Lecce, Italy. Funding is provided by the European Research Council Starting Researcher Grant project "INTERFACES-Mechanical Modeling of Interfaces in Advanced Materials and Structures".

The successful applicant will work on topics related to computational methods for interface modeling, isogeometric analysis, and multiscale methods.

Applicants should possess the following qualifications/attributes:

(a) an Engineering degree in a closely related area;

Mike Ciavarella's picture

buckling with restraint

Taxonomy upgrade extras: 

ABAQUS Explicit - defining boundary conditions and imposed displacement on rigid bodies

Hello there,

 I am currently trying to model a cold-formed steel beam experiment, where load is applied through displacement control. I thought using ABAQUS/Explicit and perform a quasi-static analysis would be a good idea.

 However, I have found an error I have not yet been able to overcome, and the results are not as I expected.

Here's the warning message:

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