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Amir Abdollahi's picture

Slow-Fast Crack Propagation in Ferroelectric Single Crystals

Dear Colleague,

 

I have uploaded a video which shows the simulation of Slow-Fast crack propagation in ferroelectric single crystals:

http://www.youtube.com/watch?v=6E7WSVOVAWM

 

For technical details, please refer to our recently published paper in Acta Materialia:

http://www.sciencedirect.com/science/article/pii/S1359645411001777

 

Best regards,

Amir Abdollahi

Amir Abdollahi's picture

Phase-field simulation of anisotropic crack propagation in ferroelectric single crystals

This is the preprint of an article that will appear in Modelling and Simulation in Materials Science and Engineering (MSMSE)

Title: Phase-field simulation of anisotropic crack propagation in ferroelectric single crystals: effect of microstructure on the fracture process

Authors: Amir Abdollahi and Irene Arias, Universitat Politecnica de Catalunya (UPC), Barcelona

 

 

Abstract:

PhD Studentship: Rock Fracture and Fragmentation - Imperial London, UK

PhD Studentship: Rock Fracture and Fragmentation

IMPERIAL COLLEGE, LONDON, UNITED KINGDOM

APPLICATION DEADLINE: 15 AUGUST 2011

 

Background: The Rio Tinto Centre for Advanced Mineral Recovery was founded

in 2008 in the Department of Earth Science and Engineering, Imperial College

London. The Centre is a partnership between Imperial College and Rio Tinto,

Erik Van der Giessen's picture

Four-year PhD position on modeling of irradiation-induced embrittlement

The Micromechanics of Materials group at the Zernike Institute for Advanced Materials in the Netherlands is looking for a qualified PhD student to unravel irradiation-induced embrittlement in nuclear materials. A detailed description can be found in the attachment. Ideally, candidates have an MSc degree in mechanical or nuclear engineering, (applied) physics, material science or a related field, but holders of a BSc with the highest ranks may also be considered.

Apply before it's too late: June 1. 

S. Beretta's picture

Damage tolerance of railway axles

Failure of railway axles has been the problem which gave origin to the studies about 'fatigue'. The modern approach to the structural integrity of these safety components is to complement the traditional designwith a 'damage toleranc' analysis.

Postdoc research associate and PhD student positions available

One postdoc and several PhD student positions are available at Clarkson University. Research background in at least one of the following areas is preferred.

1. Fatigue and fracture of materials and structures, computational mechanics and numerical methods

2. Probabilistic methods, Bayesian statistics, reliability and risk assesment 

3. Structural dynamics, health monitoring, signal processing, system identification

ESIS's picture

A blog for discussing fracture papers

The aim of ESIS is not only to develop and extend knowledge in all aspects of structural integrity, but also to disseminate this knowledge world-wide by means of scientific publications and to educate young engineers and scientists.

phunguyen's picture

A free program to generate interface elements in an existing FE mesh

Hello all,

Last year when I started implementing interface elements to model material failure, I realized that the formulation is easy except how to generate a mesh with interface elements. I did a googling to search for such a free program. Amazingly, I did not find any although there are many researchers working on the fracture mechanics field.

So, I wrote a small object-oriented C++ program which reads a FE mesh, duplicates nodes and insert interface elements where asked. The program is able to

(1) insert 1D/2D interface elements everywhere in a FE mesh

Open Postdoctoral Position in In-situ Transmission Electron Microscopy at MIT

Open Postdoctoral Position in In-situ Transmission Electron Microscopy

Department of Materials Science and Engineering, MIT

 

Robin Selinger's picture

APS March Meeting Focus session: "Fracture, Friction, and Deformation Across Length Scales"

Abstracts due Friday, Nov. 19, 2010 

APS March Meeting Focus session: "Tribophysics: Friction, Fracture and Deformation Across Length Scales"

March 21 - 25, 2011, Dallas, Texas
Details at http://www.aps.org/meetings/march/scientific/focus2.cfm#12.7.3

Invited speakers: Michael Marder (Univ. of Texas); Julia Greer (Caltech)

Organizers: Robin Selinger (Kent State), Jacqueline Krim (NCSU), Noam Bernstein (NRL)

vicky.nguyen's picture

Mechanics of Materials: Textbook Recommendation

I will be teaching a sophomore level class  mechanics of materials class.  The class will cover mechanics of basic strength of materials (e.g. beams, pressure vessels), but I also want to teach basic elements of failure mechanics (fracture, fatigue, plasticity, and wear.)  I'm looking for a recommendation of an undergrad mechanics textbook that covers the fracture, fatigue, plasticity, and wear.  The students will have had a statics and mechanics class and their textbook already covers strength of materials.  Thanks.

Kejie Zhao's picture

Fracture of electrodes in lithium-ion batteries caused by fast charging

During charging or discharging of a lithium-ion battery, lithium is extracted from one electrode and inserted into the other.  This extraction-insertion reaction causes the electrodes to deform.  An electrode is often composed of small active particles in a matrix.  If the battery is charged at a rate faster than lithium can homogenize in an active particle by diffusion, the inhomogeneous distribution of lithium results in stresses that may cause the particle to fracture.  The distributions of lithium and stress in a LiCoO2 particle

benzerga's picture

How do ductile materials fail?

This is a review on ductile fracture committed to the Advances in Applied Mechanics (Vol 44). Part of the review has an educational purpose and, as such, is intended for advanced undergraduates and starting graduate students. The other part is an account of recent research conducted in the field.

Though quite long, the review is by no means exhaustive. As noted in the discussion, many valuable contributions to this field have been left out. The focus was laid on micromechanics-based approaches to connect to microstructural aspects in engineering materials.

v.tagarielli's picture

PhD opportunities @ Oxford (for EU / UK nationals)

Dear iMechanica commmunity,

we are looking for 3 PhD students at Oxford, starting from the 1st of October 2010 or as soon as possible thereafter. The closing date for the application is the 26th of July. The 3 students are required for two different research projects, namely:

 

1) Underwater blast on composite structures - open only to EU nationals; 2 PhD students are required. The studentships are advertised here

XFEM Error Estimation for Fracture- PhD Fellowship/Scholarship Centre Henri Tudor/Cardiff University

A PhD position is available at Centre Henri Tudor (Luxembourg) and Cardiff University (UK) on the simulation of crack propagation with adaptive extended finite element methods.

Candidates from any country are eligible. 

Please contact me for details.

Stephane

Dr. Rahul Chhibber's picture

INTERNATIONAL CONFERENCE ON EMERGING TRENDS IN MECHANICAL ENGINEERING (1CETME 2010)

 

I welcome and encourage all my fellow imechanicians to participate in the international conference being organised at Thapar university patiala,  punjab, india during november 2010.

The details regarding the conference and research paper format are attached.

for further queries log on to www.thapar.edu, or http://www.thapar.edu/news-eventDet.asp?id=97 or email at

icetme2010@thapar.edu

Rahul Chhibber

Angelo Simone's picture

Phd position in computational mechanics

A fully funded PhD position is immediately available in the area of multi-scale modeling of geomaterials within the research project "Failure of cohesive geomaterials: bridging the scales - GEOBRIDGE" at Laboratoire Sols, Solides, Structures - Risques (3S-R), Université Joseph Fourier, Grenoble, France.

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