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Postdoc or summer school knowledge

Submitted by oybozkurt on

Hi, I finished my PhD and I am looking for a summer school or a language school in English. And also I want to improve my Meshfree knowledge and programming knowledge. My education is funded by government ( or my university). How can I find a school or university? And what is the procedure for acceptance? 

boundary condition in 3d model

Submitted by proussy on

here is a simple question

I have modeled the reduced section of a  tensile test specimen in 3D (a simple cylinder; falt surface in x-y plane, length in z direction).  I applied a load on one flat surface of the cylinder, and put the opposite flat surface as a symmetry plane. 

When I plot the result after the simulation of a tensile test, the cylinder moved in the direction perpendicular to the application of the load.  I was expecting it only to increase in length in the z direction.

use of CINT command for J integral calculation of 3d model with ansys

Submitted by proussy on

I used for the first time the CINT command with ansys, and I get strange results:

negative values

very different values for 2 adjacent nodes on the crack front

non converging values (values fluctuating from 1 contour to another, going up and down)

Also, i don't know what are the units of the J integral (I am using SI units, dimensions in mm ).  It's important to know so I can calculate the SIF

How can I know what contour gives the best result? what are the units of the Jintegral in the SI.

Anybody have some information for me?

Stress Field near a crack tip with different crack fibre orientations of an orthotropic lamina

Submitted by saurabh.mech.ism on

I was going through these papers:

1.P.K. Sarkar and S.K. Maiti, 'Prediction of mode-1 fracture toughness of unidirectional fibre composites with arbitrary crack fibre orientation from its lowest or matrix fracture toughness'. int. J. Fracture, vol. 40. pp. R91-R96, (1989).

 

2.S.K. Maiti and P.K. Sarkar, 'A method of calculation of total strain energy release rate and its layer-wise distribution for an arbitrary through the thickness crack extension in a composite laminate', Engg. Fracture Mechanics, vol. 36, pp. 639-646,(1990).

 

Need Help regarding SFTC DEform 3D software

Submitted by gskssit on

i am using Deform 3D for my analysis but wats the problem in this software i cant input the material properties,flow stress of the material so the validation with theoritical becomes difficult so if anybody doe know about this how to input the matl pproperties and force of the press please help me

run- up analysis-rotordynamics-ansys

Submitted by arz83 on

Dear all,

I want to do a run- up analysis for a rotor in ansys. The rotational speed change from 0 to 5000 rpm

In ansys help is explained:

nlgeom,on !! so that the gyroscopic matrix is updated

But because my model has Combin214 element, the nlgeom make error and solve dont run.

when I remove combin214, I dont get error.

I changed combin214 with matrix 27 but same problem.

In an example in ansys is used combin14. but my model is 2-D axisymmetric analysis and I think combin14 in not good element for modeling bearings.