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I am looking for a Post-doc position

I am looking for a post-doc position.

My current research interests includes robotics, mechanical vibration, robust control, modeling and control of conjugated polymer actuators for application in micro manipulation systems.

please do not hesitate to contact me

email: amirali1211982@yahoo.com

Aerospace Customer Papers featuring SIMULIA Solutions

Our Aerospace sector boasts an extraordinary amount of dedicated customers that produce high-quality conference papers year after year on their use of SIMULIA solutions. The papers provide extensive and in-depth coverage of the industry’s most popular topics: aircraft design, structural analysis, landing gear, composite testing, bird-strike and more. Download these select papers from the 2011 SIMULIA Customer Conference to learn more on how industry-leading companies such as Airbus, EADS, and Rolls-Royce Deutschland use Abaqus and Isight. 

arash_yavari's picture

Influence of Material Ductility and Crack Surface Roughness on Fracture Instability

This paper presents a stability analysis for fractal cracks. First, the Westergaard stress functions are proposed for semi-infinite and finite smooth cracks embedded in the stress fields associated with the corresponding self-affine fractal cracks. These new stress functions satisfy all the required boundary conditions and according to Wnuk and Yavari's embedded crack model they are used to derive the stress and displacement fields generated around a fractal crack.

Full time opportunity at Schlumberger - Houston Pressure and Sampling Product Center

A full time opportunity is available in Schlumberger at the Houston Pressure and Sampling Product Center. Please see the attachment for details.

Multiscale molecular simulations of the nanoscale morphologies of bulk heterojunction organic photovoltaic cells

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Hi guys

 

The following is our latest work just published on Energy & Environmental Science 

 

Multiscale molecular simulations of the nanoscale morphologies of P3HT: PCBM blends for bulk heterojunction organic photovoltaic cells

 

Cheng-Kuang Lee, Chun-Wei Pao, and Chih-Wei Chu

yanhang's picture

Postdoctoral Position in Biomechanics, Boston University

A postdoctoral research position is available in Dr.Katherine Yanhag Zhang’s lab in the Mechanical Engineering Department at BostonUniversity. We are looking for a self-motivated researcher to work on projectson multi-scale modeling of extracellular matrix (ECM) mechanics in vascularremodeling. The selected candidate will work on developing a predictivemechanobiology model of ECM mechanics to provide a clinical relevantrelationship between biomechanical integrity, biochemical compositionstability, and microstructure of the ECM.

PACAM XII - Submission extended to September 3, 2011

Dear Colleague, 

 

The deadline for submission of abstracts to the  Twelfth Pan American Congress of Applied Mechanics (PACAM XII) has been extended to Saturday, September 3, 2011.

Test for parameters of Johnson Cook damage criterion

Hi.

I am looking for the experimental method to determine the parameters (D1, D2, D3, D4, D5) in Johnson Cook damage criterion for steel AISI 1045. Please help me if you have any sources relative this. Thank you.

 

Check out our latest issue of SIMULIA Realistic Simulation News!

From spacecrafts to army helmets, the latest issue of SIMULIA Realistic Simulation News delivers customer success stories and industry strategy focused on Aerospace and Defense. 

Our feature article is an exciting and in-depth report on Dutch Space’s application of Abaqus in literal rocket science: virtual testing of a new metallic thermal protection system for hypersonic space vehicles.

Also in this issue:

Designing Safer Vehicles with Realistic Simulation of Airbag Deployment

Airbags are one of the major protection systems used in a car crash. They play one of the most important roles in preventing severe injuries and fatalities during vehicle crashes. The advancement of new technology and airbag regulations necessitates that airbags be tested for safety in all kinds of scenarios, including situations where the occupant interacts with the airbag before it is fully deployed.

Water Landing of Space Flight Re-entry Vehicles Using Abaqus/Explicit

Space flight re-entry vehicles need to withstand heavy impact upon landing and it is critical for engineers to understand the effects on the vehicle and the crew to ensure the safety of the mission.  In order to gain this insight, engineers need to be able to model both the space craft structure and the landing medium such as water, sand, clay, etc.

Journals in Physics and Engineering, and Preprint Servers Like arXiv

Hi all,

 

1. In the past, we have had quite some discussion regarding both open-access and open-access journals. However the slant in this blog post is different. I am not concerned here much about open-access journals per say.

Mike Ciavarella's picture

A simple approximate expression for finite life fatigue behaviour in the presence of ‘crack-like’ or ‘blunt’ notches

After a long process (somebody may recall I made also quite some chaos on imechanica to complain with the review process in a previous journal), this paper was accepted.  Ask me a preprint if you are interested.  I can attach here a few images only.


M. CIAVARELLA
Politecnico di Bari, 70125 Bari, Italy
Received in final form 13 June 2011

 

Timescale Multiscaling in Atomistic Simulations of Experimental Nanostructures

We all know most atomistic simulations in nanomechanics are performed on ideal materials that are not produced in laboratory and most experiments in nanomechanics are performed on materials that cannot be analyzed using atomistic simulations. Atomistic simulations indeed have a great capability in revealing a material's behavior with only constitutive law being used is that in the form of interatomic potential. The strain rate in atomistic simulations is of the order of 100000000 per sec which has not yet been achieved in any experiment or in a practical application.

Industry-level journal about FEM applications

Hi dear mechanicians,

I am about to publish the results of my MSc thesis in a journal. The thing is, my project was carried out in industry about multi-scale FE simulation of impact in composites. So it is merely an industry-level application of available methods.

 I want to ask if any of you have any particular journal in mind, in which publishing such a paper is rather easy (doable) and does not have a long waiting list for review??

Looking forward to your suggestions

Thanx a lot

Setareh

ICoBT 2011 - Final programme now available

The International Conference on BioTribolgy will take place in London, Imperial College, 18-21 September 2011. To download the full programme or to register, go to http://www.biotribologyconference.com

Important News: ICEFA V changes venue from Rotterdam to The Hague

ICEFA V, the Fifth International Conference on Engineering Failure Analysis, will now be held at Hilton Hotel, The Hague, The Netherlands from 1-4 July 2012. For more information, go to www.icefaconference.com

JAcobian interpretation

 I was just reading about volumetric locking in Dhondt's book (for Thermomechanical analysis) and came across this (funny) question;
 
Now, we say the physical interpreation about Jacobian is change in volume, now if a material is incompressible Jacobian = 1, now this incompressibility is a material property, right?
 
Where is a material parameter attached to Jacobian expression of finite elements (1-d,2-d or 3d finite element)?

Comments on Cauchy's stress theorem

I have been bugged by this question ever since I studied cauchy's stress theory 10 years ago.

In cauchy's analysis of solids, there two popular geometries.

First one is a unit cube used for deriving equations of equilibrium.

And the second one is a tetraheadon used for deriving Cauchy's stress theorem.

In both the cases limit of force equilibrium as solid geometry shrinks to a point is derived.

My question has been, how come limit of force equilibrium at a point inside a solid depenent on the path taken by limiting process.

Xiao Hu Liu's picture

Job Opening at IBM Microelectronics: Semiconductor Process Integration Engineering Professinal

There are several openings for semiconductor process integration at IBM Microelectronics. The reqiured background is quite broad, specifically mechanical engineering background, reliability, failure analysis and modeling with experience in BEOL process and integration. To see more details and to apply online, please click the link below.

https://jobs3.netmedia1.com/cp/job_summary.jsp?job_id=STG-0424220

 

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