Assistant Professor Nanshu Lu  at the University of Texas, Austin is among the 2012 class of MIT Technology Review 35 Innovators under 35  (TR35), with the citation of "soft, flexible electronics bond to skin and even organs for better health monitoring". Since 1999, the editors of Technology Review have honored the young innovators whose inventions and research are likely to be influential for a very long time.

Congratulations on such a distinguished honor! 

La resistenza degli ingranaggi

Cuscinetti volventi 2^ parte

Stato di tensione e di deformazione in campo elastico

Hey there, I am the newbie in Ansys Modelling, and right now I have to model of 3D RC beam reinforcing by GFRP bars.
Anyone here that can give advice or placing any beneficial link to me to refer.

Thank you so much guys.

Regards

hi every one

i have problems with abaqus incrementation , now i do fill min,max and initial increment by trial and error , its not efficiency when running time is much,i will be glad if any one can help my and give me overlook of abaqus incrementation.

thanks 

Message from the Chair... 

Ares J. Rosakis

Professor Zhigang Suo will give the Thurston Lecture at the IMECE 2012 meeting, Houston, 10am-noon, 11/14/2012, Wednesday.

 Hello,

 I'm modelling an impact of a rigid body with a deformable plate (shell elements) in the dynamic explicit analysis. When defining contact parameters, I can add the damping coefficient. I'd like to know what value is typical for this parameter? After some computations, I've found that 0,01...0,05 was rather good for my model. Is that a reasonable value?

Thanks 

hi every body:

mdb.models['Model-1'].parts['Part-1'].SectionAssignment(offset=0.0, 

    offsetField='', offsetType=MIDDLE_SURFACE, region=Region(

    faces=mdb.models['Model-1'].parts['Part-1'].faces.getSequenceFromMask(

    mask=('[#1 ]', ), )), sectionName='Section-3', thicknessAssignment=

    FROM_SECTION)

In the up scrip example, how can be define the "mask" for use in getsequencefrommask?

In addition to the ASME awards related to the Applied Mechanics Division, some prestigious society awards will be given to mechanicians at the IMECE, Houston, Texas, in November 2012.

Professor Jan Achenbach  of Northwestern University will receive the ASME Medal.  [ASME Medal, established in 1920, is the highest award that the Society can bestow and is to recognize “eminently distinguished engineering achievement.”  Only one ASME Medal may be awarded annually.]

Hello, I would like to know under what situation will a stiffness matrix in a FEM problem become non-symmetric? Is there any good reference to this topic? Thanks.

Hi everyone,

I want to ask, does anyone know how to design vanes for unsymmetrical elbow? At least can you give me some calculation recommendations to design it? I am doing air simulation inside ductings for my final project. Thanks all

Hello, everyone! When talking about allowable stress, Safety Factor is introduced. While in offshore engineering, there are allowable stress modifier in API and material factor in NPD. So what is the difference between safety factor and allowable stress modifier or material factor? Are they used in special load conditions?

You help will be appreciated. Many thanks! 

Awards will be presented at the AMD Banquet, scheduled on Tuesday, 13 November 2012, during the ASME International Mechanical Engineering Congress and Exposition, to be held in Houston, Texas, 9-15 November 2012 at the Hilton Americas and the George R. Brown Convention Center.

 2012 Society Awards:

Hello everyone,

I need some help regarding the definition of initial residual stresses and plastic strains in a shell finite element (S4R) model in ABAQUS/Explicit.

I have determined the residual stress distributions and initial plastic strains and I need to assign these distributions to a given element set.

I understand I should be looking at:

*INITIAL CONDITIONS, TYPE=STRESS

 ELSET_A, S11, S22, S33

Hello,

 I'd like to know how the computation time depends on the element number in a model (dynamic explicit analysis in Nastran). When I work with a simple model which has a rather coarse mesh the function is linear, so 10 steps with the increment 0.001 is equivalent to 100 steps with the increment 0.0001. But I don't know how this dependency will evaluate if I build a much more complex model. Maybe it will be exponential?

Thank you

Dispense materiali compositi

hi....I have one question...it is: what is the minimum weight of a water droplet pending on the roof that it will fall down....my question is this ...shall we use both ΔP and surface tension for the solution??? plz guid me....thanks

soheilesm@yahoo.com

Good afternoon all,

I am doing bird strike analysis on engine fan blade,I have used lagrangian simulation for this model,very high plastic strain are coming. please suggest  how to retify it and if any one have example problem of bird strike(.k file) please share it 

Regards,

Nizam

Dr. Subra Suresh, material scientist and the Director of the National Science Foundation, is elected to the US National Academy of Sciences.  He is iMechanica user 190.  Congratulations!

Hi

I work  on the damage to the adhesive.

in a abaqus please ,after viewing the results how to calculate the damage surface of the adhesive (damage rate).

thank you in advance

Mhamdia.R 

Hi, all

   I am a newer with ABAQUS. I have to simulate mechanics of a new material with ANAND model.

   I want to know whether a built-in ANAND model was in ABAQUS6.91 right now. And how to use it? I have seen in somewhere that someone said ABAQUS 6.5 had built ANAND model, but I don't find any information about ANAND model in ABAQUS6.91 I am using now.

   I hope you can tell me something about it.

   Thank you very much.

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