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mathematical model for a crack emanating from one rivet hole and approaching another

Submitted by anand_mtech on
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Hi All,

 

i am doing my m. tech project on " FE modeling and validating to find stress intensity factor for a crack emanating from one rivet hole and approaching another rivet hole".I have developed the FE model in ANSYS and tabulated stress intensity factor at crack tip from different crack length. But to validate my result i want an mathematical model or formula. Please suggest me an formula to find KI at the crack tip for this problem.

python scripting

Submitted by villa7 on

I have extracted field output from ABAQUS odb file and I want to take log of that field. In ABAUQS scripting manual, in section 9.8.2 it has been mentioned that

               log10(field output)= field output

 When I am trying to do this compilation gives me error. "a float value required"

Please guide me if i am making any mistake

Also if possible, suggest how can I get rid of this problem? 

MATLAB for thermal simulation

Submitted by riscy00 on
education
FEA
thermal
Matlab
CFD
BEM

I'm currently studying FEA/CFD and BEM for thermal simulation of custom dies within custom package mounted on custom PCB with encapsulate material (epoxy). I getting familar with CFD concept which seem overkill from ANSYS IcePack (too expensive) but exploring BEM technology from E3D in france (via Vishay).

I have access to MATLAB from other company to try it out for thermal modelling (BEM).

hi all

Submitted by V.A.Joneidi on
Forums
Biomechanics Forum

I'm working on blood vessels constitutive equations and i need some papers but i can't find them

i hope if you can send them to me

here is my mail: vahab.ahmadi.joneidi [at] gmail.com (vahab[dot]ahmadi[dot]joneidi[at]gmail[dot]com)

in need these papers:

 1-  Lee, E.H. : Elastic Plastic deformation at finite strains.Trans. asme, J .applied mechnics 36, 1_6(1969)

ABAQUS, Contact definition between soil and nail

Submitted by copernic on
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ABAQUS
Soil Nailing Wall Modelling

Hi There,

I am  modelling a soil nail wall with ABAQUS. I am wondering to know what interaction I am supposed to define for connecting nail to wall and nail to soil? By the way, I define soil as 2D plane strain and wall and beam as beam element.

Regards, 

 

Reliability Engineers Job Positions in Microsoft Hardware

Submitted by Zhen Zhang on
job
job
hardware
Microsoft

There are many job positions on hardware reliability due to the success of on xbox Kinect. The following is the typical description. Please check out http://www.microsoft-careers.com for more.

Reliability Engineer, Senior-IEB-MSCIS (740985) Job
Apply now »

Date: Dec 22, 2010

what are the new recent advances in meshfree methods

Submitted by productiquenc on
research

i'm in my first year of doctorat level, and i work on meshfree methods applied in mechanical field, i would ask for recent research in this field and some indications for : what new to explore (composit materials, crack and fractures, other new materials...) in this field

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