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True strain rate experiment

Submitted by raju_pro on
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I am planning to perform few "true-strain-rate" experiment under compression (where the crosshead velocity is not constant sice the height of the specimen keeps decreasing/ area of cross section keeps increasing, hence requiring the velocity to decrese to attian true stress-true strain), is there any option available in Bluehill or Max software of Instron 8874to suit my requirement?  As an alternative method, are there any options for me to import my own X-Y data (either time vs position or time vs velocity) to the system so that i can perform this true strain rate testing.

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

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.

The Future of Meshless Methods

Submitted by Ettore Barbieri on

I joined imechanica almost a year ago and I've been frequently following its interesting discussions, even the most animated ones. I think that a place like this is ideal to foster the exchange of ideas in the scientific community;

Moreover it is fantastic as a simple student like me can interact and easily ask questions to the most important researcher in the field of mechanics.

Sia Nemat-Nasser Early Career Medal Established

Submitted by Juil Yoon on

Spring 2008:   The Materials Division of ASME is pleased to announce the creation of The Sia Nemat-Nasser Early Career Medal in honor of Dr. Sia Nemat- Nasser, Director of the Center of Excellence for Advanced Materials at UC San Diego and Distinguished Professor of Mechanics and Materials. This award is given to recognize research excellence in the areas of experimental, computational, and theoretical mechanics and materials by young investigators who are within 10 years after their Ph.D. degree, with special emphasis placed on under-represented minorities and women.  

Modeling of cohesive zone model (CZM) using MSC.Marc

Submitted by wangyl on

Hello everybody,

I am a new comer here and I need some help. I want to simulate the interface debonding process of  bimaterial using the commercial FE software msc.marc, but I want to use my own cohesive law not the one given by the marc. so the user subrotine UCOHESIVE must be used, the problem is I dont know how to program using FORTRAN. I hope some one here can help me, if  you have such a user subrotine, can you kindly sent it to me? that will give me a great hand. Thank you very much. Expect your reply.