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investigation on mechanical properties of clay-polymer nanocomposites

Submitted by Ali R. khalighi on

Hi all

I have a question and need for guidence.

I' m working on mechanical properties of polymer based nanocomposites as my thesis. I'm a beaginer in open sourse FEM programs.

I want to modele clay, polymer and specialy interactions between them to investigate bending properties and enhancements.

Is it possible for me to use commercial programs like  ABAQUS? Which programe do you prefer?

I will appreciated if any one could help me to identify witch method is more suitable for investigation in this field.

Europe’s research system must change: Nature Vol 452|24 April 2008

Submitted by Mike Ciavarella on

Dear Imechanica friend

 a recent Nature Commentary has generated a lot of interest, particularly in Europe. Maybe it is of interest, also in response to Grand Challenges for Engineering?

I suggest some lines: 

Post-Doc position on stresses and adhesion in multilayers (France)

Submitted by Etienne Barthel on

Please note that a post-doc position on stresses and adhesion in optical multilayers is open. The position is for 2-years shared between SVI (Paris) and Phymat (Poitiers).

Link to a virus-free MS Word description of the position:

http://www.saint-gobain-recherche.com/svi/en/image_merethif_position.html

For further details and applications (cover letter, CV, statement of research interests):

Post-doc Newton Fellowship

Submitted by Stephane Bordas on

Dear all,

 

Below is an opportunity to apply for post-doctoral positions in the UK for two years if you are not currently working in the UK. I am currently looking for candidates with expertise in computational mechanics to complement the work being performed by 4 to 5 Ph.D. students in areas related to: (1) fracture mechanics (2) surgical simulation (3) multiphysics and multiscale modelling of fracture in materials with complex architectures. Please contact me if you are interested stephane dot bordas at gmail dot com

Stephane Bordas

The Paris equation

Submitted by raulito on
The  Paris equation should correctly be referred to as the ERDOGAN-PARIS equation, maybe some more names may be needed.
LEFM is a term bandied about in the text books, but very few texts  know how to define what it means and how it applies.
You can take my course.  What happened to the earlier posts about my course.
Anyone who contributes to my DORN-RAJNAK or HARPER DORN will be given credit.
 

Domain structures of ferroelectric nanotubes controlled by surface charge compensation

Submitted by Jie Wang on

Ferroelectric nanotubes have potential application in inkjet printing and drug delivery due to their piezoelectric property and unique geometry. For different applications, different electrical boundary conditions are applied to ferroelectric nanotubes. In the present work, domain structures in ferroelectric nanotubes (FNTs) under different electrical boundary conditions are predicted through a phase field model. Simulation results show that domain structures are highly dependent on the compensation of polarization-induced surface charges.