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Journal Club for September 2016: Developments and challenges in miniaturized in situ experiments – Towards small-scale fracture mechanics

Small-scale mechanics, especially in situ in electron microscopes, is what I enjoy spending my time with. Within this monthly journal club topic on iMechanica, I would like to give a quick recapitulation of what happened in micromechanics, of course with special emphasis to in situ techniques, over the last years to set the stage. Subsequently, we should revisit some longstanding issues before turning towards recent developments in the field of fracture testing.

Teng Li's picture

SES2016 goes mobile!

Dear colleages,

Hamid.Akbarzadeh's picture

PhD Position at McGill University in Smart Advanced Materials

One PhD position is available for Winter 2017 in the Bioresource Engineering Department of McGill University. The research is on the Multiscale Modelling of Smart Advanced Materials. Theoretical, computational, and experimental studies will be conducted for design and analysis of smart advanced materials for energy scavenging. The candidate will work under the supervision of Dr. Hamid Akbarzadeh at McGill University.

Jingjie Yeo's picture

Free-standing graphene slit membrane for enhanced desalination

http://dx.doi.org/10.1016/j.carbon.2016.09.043 This study considers two novel ideas to further explore and enhance the graphene membrane for desalination. Firstly, while earlier molecular dynamics (MD) simulations studies have used frozen membranes, free-standing membrane is considered here. Since 2D membranes are usually embedded on porous support in the experimental reverse osmosis (RO) process, the free-standing membrane can more accurately model the behavior expected during operation.

mohamedlamine's picture

Publication

Hi all,

I am pleased to post the references of my recent paper entitled :

"CONTRIBUTION TO BRIDGE DAMAGE ANALYSIS" Mohammed Lamine MOUSSAOUI, Abderrahmane KIBBOUA, Mohamed CHABAAT

APPLIED MECHANICS AND MATERIALS Journal,

Volume 704 (2015) pp 435-441

DOI: 10.4028/www.scientific.net/AMM.704.435

 

N.B: The equation (7) has been reviewed with:

[P2](nxg)=[[I](nxn)| [0](nxf)]

and is available at:

Dr. Emin Taner ELMAS's picture

Fourth Joint International Conference organized by Institute of Research Engineers and Doctors at Rome, Italy.

 

Dear Colleagues,

I am Dr. Emin Taner ELMAS from İzmir, Turkey; and I am also a member of Institute of Research Engineers and Doctors  The IRED has sent me a request to announce  this below conference "Fourth Joint International Conference organized by Institute of Research Engineers and Doctors at Rome, Italy. ". 

Therefore , I am sending you this Conference Announcement since there is also a mechanical engineering conference listed below, so you may interested in.

Best Regards,

Dr. Emin Taner ELMAS's picture

Call for Papers: International MultiConference of Engineers and Computer Scientists (IMECS 2017)

Dear Colleagues,

I am Dr. Emin Taner ELMAS from İzmir, Turkey; and I am also a member of International Association of Engineers and also a member of its Society for Mechanical Engineering with member number 164672. The IAENG has sent me a request to circulate this calls for papers to my colleagues, related to "International MultiConference of Engineers and Computer Scientists (IMECS 2017)". 

2 PhD positions in structural engg. at NDSU

Two fully funded PhD positions for Spring 2017 are available in the area of experimental and computational damage mechanics at North Dakota State University, Department of Civil and Environmental Engineering. Area 1: microstructure and micromechanics based modeling of fatigue in structural steels; Area 2: multiscale computational tools for damage analysis of pavement materials.

Huajian Gao's picture

Faculty Opening in Solid Mechanics at Brown University

The School of Engineering at Brown University is seeking to fill a faculty position in Mechanics of Solids and Structures at any academic level.  Candidates should have expertise and research interests in the mechanics of soft, biological, structural, energy materials or systems that are complementary and synergistic with existing research areas in the School as described below.

Yaning Li's picture

Ph.D positions open

 

Positions of two Ph.D students are now open for Spring and Fall 2017 in the department of Mechanical Engineering at the University of New Hampshire (UNH).

We are looking for enthusiastic and self-motivated candidates who are experienced in mechanics of materials, bio-inspired engineering and 3D printing.

Dynamic Crack Branching

Hi all, 

     I came across the problem of dynamic crack branching in few papers like ["Phase field approximation of dynamic brittle fracture", Schlüter et al (2014), "Phase-field modeling of ductile fracture",Ambati et al (2015)].  I am not able to understand the reason for the crack to branch out at an angle ~27 when a tensile uniformly distributed load is applied in a dynamic way at top and bottom side. If you take isotropic homogenous elastic medium why the crack should branch out like that ? I would be grateful if you could please share your thoughts on this. 

Avinash Dongare's picture

Postdoctoral Position on Mesoscale Modeling Materials at the University of Connecticut

The Computational Materials & Mechanics Group (CMMG) at the University of Connecticut has an immediate opening for a  postdoctoral researcher in the area of modeling of impact behavior of materials at the mesoscales. The work is based on the newly developed quasi-coarse-grained dynamics method that extends the time and length scale capabilities of molecular dynamics simulations to the mesoscales.  The postdoctoral researcher will work on the extension of this method to model shock/impact response of complex materials systems. 

6th Biot Conference on Poromechanics - Deadline for Abstract Submission Extended to September 30, 2016

Dear colleagues,

Please note that the deadline for abstract submission to the 6th Biot Conference on Poromechanics has been extended to: September 30, 2016. This extension is final.

WCFA2016-VFA – Workshop on Vibration Fatigue Analysis

Dear iMechanicians,

I would like to inform you about the workshop WCFA2016-VFA, which is this year organized with the focus set on Vibration Fatigue Analysis. The workshop will be held at the Czech Technical University in Prague, Czech Republic from November 8 to November 10, 2016. The introductory lessons in the first day will be presented by Prof Darrell Socie, Prof Milan Ruzicka and Dr Jan Papuga, while the main topic - Vibration Fatigue Analysis - will follow in next two days and will be covered by Dr Neil Bishop.

Harry Coules's picture

PhD position in Structural Integrity for Nuclear Applications *UK citizens only*

One fully-funded PhD position in Structural Integrity for Nuclear Applications is avalable at the University of Bristol with a tax-free stipend of £18,000 per annum. Please see the full advert here for details:

http://www.jobs.ac.uk/job/AOI473/phd-studentship-structural-integrity-fo...

jkruzic's picture

Postdoctoral Fellow Position, Mechanics of Materials, University of New South Wales, Australia

 

There is an opening for a postdoctoral fellow in Professor Jay Kruzic’s group at the University of New South Wales (UNSW), in Sydney, Australia.  The initial term will be one year, with the potential to extend the appointment for 2-3 years based on performance and availability of funding. 

Key duties:

Jinxiong Zhou's picture

Soft mobile robots driven by foldable dielectric elastomer actuators

A cantilever beam with elastic hinge pulled antagonistically by two dielectric elastomer (DE) membranes in tension forms a foldable actuator if one DE membrane is subject to a voltage and releases part of tension. Simply placing parallel rigid bars on the prestressed DE membranes results in enhanced actuators working in pure shear state. We report design, analysis, fabrication and experiment of soft mobile robots that are moved by such foldable DE actuators.

Artem Korobenko's picture

Ph.D./M.Sc. openings at the University of Calgary, Computational Fluid & Structural Mechanics

Please see the Website for more details.

Several Ph.D./M.Sc. positions available at the University of Calgary (Alberta, Canada), Department of Mechanical & Manufacturing Engineering at the Computational Fluid & Structural Mechanics (CFSM) group of professor Artem Korobenko.

carpick's picture

Faculty positions in MEAM at the University of Pennsylvania

The School of Engineering and Applied Science at the University of Pennsylvania is growing its faculty by 33% over a five-year period. As part of this initiative, the Department of Mechanical Engineering and Applied Mechanics is engaged in an aggressive, multi-year hiring effort for multiple tenure-track positions at the Assistant, Associate, and Full Professor levels.

Payam Soltani's picture

Tuning of a piezoelectric vibration absorber attached to a damped structure

Tuning of a piezoelectric vibration absorber attached to a damped structure

By : Payam Soltani, Gaetan Kerschen, Gilles Tondreau, Arnaud Deraemaeker

Abstract:

Sulin Zhang's picture

Recipients of 2016 Extreme Mechanics Letters (EML) Young Investigator Award

I am pleased to announce that Prof. Robert Shepherd from Cornell University and Prof. Kejie Zhao from Purdue University have been voted by the award committee as the recipients of the 2016 EML Young Investigator Award.

Pradeep Sharma's picture

Call for Nominations for the Eshelby Mechanics Award for Young Faculty

It is my pleasure to solicit nominations for the "Eshelby Mechanics Award for Young Faculty". This award, launched in 2012, is given annually to rapidly emerging junior faculty who exemplify the creative use and development of mechanics. The intent of the award is to promote the field of mechanics, especially among young researchers. While interdisciplinary work that bridges mechanics with physics, chemistry, biology and other disciplines is encouraged, the ideal awardee will demonstrate clear inspiration from mechanics in his/her research.

Congrui Jin's picture

Elastic Microplane Formulation for Transversely Isotropic Materials

Our recent work investigates the extension of the microplane formulation to the description of transversely isotropic materials such as shale rock, foams, unidirectional composites, and ceramics. Two possible approaches are considered: 1) the spectral decomposition of the stiffness tensor to define the microplane constitutive laws in terms of energetically orthogonal eigenstrains and eigenstresses; and 2) the definition of orientation-dependent microplane elastic moduli.

Microstructure modeling of random composites with cylindrical inclusions having high volume fraction and broad aspect ratio distribution

We proposed a computational methodology for generating microstructure models of random composites with cylindrical or sphero-cylindrical inclusions having high volume fraction and broad aspect ratio distribution. The proposed methodology couples the random sequential adsorption (RSA) algorithm and dynamic finite element (FE) simulations. It uses RSA to generate sparse inclusion assemblies of low volume fraction and subsequently utilizes dynamic FE simulation for inclusion packing to achieve high volume fractions.

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