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Timescale Multiscaling in Atomistic Simulations of Experimental Nanostructures

Submitted by vikastomar on

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

Submitted by setareh on

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

Submitted by Laure Ballu on

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

Modified Cam Clay in ABAQUS

Submitted by nislamce_adfa on

Hi All,

I am a new user in ABAQUS. I am interested to model soft soil of embankment using Modified Cam Clay model. I have modeled the similar problem in AFENA but in 2D. I am interested for 3D case. Can anyone extend co-operation, how to model soft soil in ABAQUS using Modified Cam Clay?

My email address: nislamce_adfa [at] yahoo.com

Thanks in advance.

Regards,

Nurul Islam

Question about postprocessing in ABAQUS

Submitted by Gyanender Singh on

Hello,

 I am using Abaqus for a structural analysis problem. In the results I have stress distribution over the structure. I can use odb file to see the distribution of stresses as a function of space and time. 

I want to plot stress at a particular node as a function of time (and may be also stress distibution w.r.t. space coordinates at some instant of time). I have some general idea about the result file that can be generated from Abaqus and can be accessed. I am reading more about it but I am not sure if this is the right way.

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

Submitted by Laure Ballu on
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

REFERENCE POINT of analytical rigid surface, specialist in ABAQUS CAE Explicit contact, please help

Submitted by ABAqirl on

Hello everybody,

I simulate the indentation test with ABAQUS CAE, the indenter is simulated as rigid body analytical surface. I also created reference point, but when i submit the job, there is a mistake:

 

The rigid part instance Part-2-1 is missing a reference point. Either assign a reference point to the corresponding part or include the entire part in a rigid body constraint.

I think i have done everything properly but it doesn't work. if you need i can send you my code.

I am looking forward to your answer.

 

Comments on Cauchy's stress theorem

Submitted by Structrual Engineer on

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.

Job Opening at IBM Microelectronics: Semiconductor Process Integration Engineering Professinal

Submitted by Xiao Hu Liu on

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