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Fully funded PhD scholarship in Vienna, Austria. Research topic is the behaviour of granular materials.

Fully funded PhD scholarschip for 3 years is available at the Institute of Geotechnical Engineering, Universität für Bodenkultur, Vienna, Austria. The research topic is the behaviour of granular materials. We expect a candidate with solid background in continuum mechanics and constitutive modelling. Some knowledge of DEM (discrete element method) will be a benefit. This project is financed by the European Commission within its Marie Curie Programme. There are some ten international partners in this project. During the project you will visit our partners in UK, Germany, Holland and France.

Fully funded PhD scholarship in Vienna, Austria. Research topic is the stability of earth slopes of unsaturated soil.

A fully funded PhD scholarschip for 3 years is available at the Institute of Geotechnical Engineering, Universität für Bodenkultur, Vienna, Austria. The research topic is the stability of earth slopes of unsaturated soil. We expect a candidate with solid background in continuum mechanics. Some knowledge in constitutive modelling of soil and numerical analysis (finite element and finite difference) will be a benefit. This is a joint project with Stanford University, USA. The candidate will visit and stay in Stanford for some time. Your thesis will be co-supervised by Prof.

Saint-Venant’s Principle and Its Proof : History and Review

In this article the history of development of Saint-Venant’s Principle is reviewed, referring to the most important events concerning the principle as the historical clue, and the important works and results are evaluated; the view-points that Toupin Theorem can not be considered as a mathematical expression of Saint-Venant’s Principle and that the general Saint-Venant’s Principle does not stand, but modified Saint-Venant’s principles can be proved true are published and explained; the mathematical approaches for eslablishing modified Saint-Venant’s principles are summarized; the significan

Gopinath Venkatesan's picture

Business venture - seeking support from like minded people from India:

I am coming back to India in the September 2009, and with only a month to go, I am thinking about joining likeminded individuals to open up a small consultancy group and see where it goes. We can also teach CAD/FEM side by side (during day time, and work on projects in the evenings/night - flexible times). Presently I am thinking of buying 1 Ansys Professional (which is very expensive, atleast to me) license. If you have other suggestions, please write to me in detail. I look forward to suggestions from the experienced persons.

BoJing Zhu's picture

Castigliano theorem_Strain energy method

PPT file for castigliano theorem(1st & 2nd)_Theory of structures 

T.ZENG's picture

Discuss the derivation and numerical calculation of Eshelby Tensor

 

In the micromechanics, the Eshelby tensor is always encountered. Now, i am trying my best to solve this kind of problem.

The problem confusing me now is an integration about Fourier integral.

If someone has paied attention to this problme, can we discuss together!!!

Thank you very much for your attention!!!

Progressive Failure Model

Hi

Am currently running Ansys analysis using shell181, and Tsai-Wu FC, have some good working first ply failure models

Trying to convert this into a progressive failure model, with no luck so far.

Anyone know something about this, how it could be done?

I suspect by looping, and fortran code, but I do not really have a clue..

grahamcross's picture

Trinity College (CRANN) Ph.D. Fellowship: Physics of Nanostructure Forming

4 year Postgraduate Fellowship in the School of Physics and the CRANN Nanoscience Institute,Trinity College, Dublin, Ireland

Nanomechanics Group of Dr. Graham Cross (webpage)


Available immediately:  A doctoral fellowship in soft condensed matter physics, with an emphasis on large strain nanoscale deformation and controlled pattern production.

Non linear finite element analysis

Hi,

I've been reading the book by Crisfield on Non linear Finite elment analysis-Volume 1

Basically, I've been reading the first 4 chapters as of now which can be summarized as follows:-

So far in Crisfield’s book, following has been covered/ done: 

Zhigang Suo's picture

Haythornthwaite Grants for Students to Attend ASME IMECE 2009

With a generous gift from the Haythornthwaite Foundation, the ASME Applied Mechanics Division will award grants to students presenting their own work at the ASME International Mechanical Engineering Congress and Exposition (IMECE 2009).  The grant will reimburse travel expenses and registration fees, up to $1,000 per student, for up to 10 students.

Topological crossovers in the forced folding of self-avoiding matter

We study the scaling properties of forced folding of thin materials of different geometry. The scaling relations implying the topological crossovers from the folding of three dimensional plates to the folding of two-dimensional sheets, and further to the packing of one-dimensional strings, are derived for elastic and plastic manifolds. These topological crossovers in the folding of plastic manifolds were observed in experiments with predominantly plastic aluminum strips of different geometry.

ktramesh's picture

Postdoctoral Position in Fragmentation

We have one postdoctoral position, available in October 2009, in the general
area of fragmentation and dynamic failure. The specific interest is in the timescales and lengthscales associated with the interactions of failure modes in materials. A background in modeling and simulation is essential, while some experience with shock physics is desirable. The successful candidate will become part of a highly collegial and diverse research group with activities in nanomaterials, planetary science and biomechanics. The work involves collaborative research with the Johns Hopkins Applied Physics Laboratory, and US citizenship is required. If you are

ktramesh's picture

Postdoctoral Position in Mesoscale Mechanics

I have one postdoctoral position, available immediately, in the general area of mesoscale modeling. The specific interest is in the development of computationally tractable models that incorporate the appropriate lengthscales and that can be used for microstructural design. The work is in conjunction with research groups involved in the development of materials for impact applications. Examples of topics of interest include the processes of dynamic failure in specific microstructures, and the development of physics-based models that account for grain size, grain size distribution, grain rotation and texture. If you are interested, please send me (ramesh@jhu.edu)
your CV and the names of at least two references. Women and minorities

Timoshenko theory

Hi all

I developed a Fnnite element code in Maple for Euler Bernoulli Beam Theory. Then I solved a cantilever beam with a vertical load at the free end. On comparing results with comercially available software, my results are good.

Finally I developd the FE formulation for Timoshenko beam theory. for the same cantilever problem, I introduced a small magnitue of shear modulus but the results are highly different from the Euler-Bernoulli beam.

Can any body explain this?

Beam Problem

Hello all,

I am trying to obtain the normal stresses in a beam subjected to a bending moment. The ratio of the length to thickness of the beam is approximately 3. 8. Will Euller-Bernoulli beam theory provide reasonable results for the normal stresses (using flexural formula)? Is there a formula similar to the flexural formula that considers the effect of transverse shear (timoshenko theory), to compute the normal stresses?

I would appreciate any insights on this problem.

Best Regards,

Shaik

mahesh mane's picture

Phisical significance of ENTROPY

I got that there exist a property called ENTROPY;for which the difference in it's values at two states is (Q/T).but I can't get it's physical significance

   I know that it represents the irreversibility of the process.But it doesn't sutisfy me.So if anyone can...

Non-linear energy release rate (JI,JII,JIII)

Hi all,

I am currently working on mooney-rivlin materials. I wonder if someone have tried to compute GI, GII and GIII with the EDI because I don't understand how to compute WIII with mooney-rivlin.

Thanks a lot

Joachim Guilie

Thermo-mechanical model of friction stir welding

My name is Aurelio Tronci and I am a PhD student at the University of Cagliari (Italy). My research topics are related to friction stir welding (FSW). The work done so far has focused on the application of the DOE technique in order to investigate the influence of welding parameters on the microstructural and mechanical properties of aluminum alloys (AA 2198 T3-T8) joints. At the moment I am interested in the development of a thermo-mechanical model of FSW with CFD, but I find it really difficult to find material constants (Sellars and Tegart law) for all the alloys I have to test.

Post-Doc Positions in Computational Materials / Computational Chemistry at The University of Texas at Arlington

We are seeking two post-doctoral researchers to pursue computational studies of polymer-derived high-temperature ceramics, which exhibit an unusual structure at the nano-scale. Projects involve quantum and classical molecular dynamics simulations, modeling structure formation and fracture mechanics, solid state and gas-solid thermodynamic processes, and oxidation behavior.

How Should Journal Club Work at iMechanica?

This has been a topic that the editors of Journal Club have been discussing for some time now.  We would like some feedback from the entire iMechanica community.

Ph.D. position in material modelling

Please see attached pdf for detailed information.

The group Material Science and Simulations (Helena Van Swygenhoven) is looking for a PhD candiate perfoming atomistic simulations on dislocation/interface interaction. The group performs research in the structural and mechanical properties of metal, alloys and composites using in-situ testing facility and is exploiding synergies with computational material science. 

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