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Bending stress of a "T" collored tube kind of structure

Hi everyone,

I am a under graduate (B.E-Mechanical) student carrying out project for my curriculam.

In this project I was alloted to study the strength of collered tube kind of product. In this product I have to study the stress at fillet region (Please refer the attached presentation) and suggest the required section improvement.

According to my knowledge, fillet region would undergo two kind of stresses

1. Normal stress (stress due to axial load and bending stress due to moment arm from the fixed end)

shell 181 for polymer composites

hi guys,

         can anyone tell me whether a semi rigid PVC foam  can be analysed by taking shell 181 material and if possible please provide me with details regarding the layer configuration of this material type.

MDS of CNT

Can anybody tell me what is the most suitable software for molecular dynamic simulation of CNT from SIESTA and Material Studio?

About: why we have not synthetic diamonds

 

 

                              About: why we have not synthetic diamonds.

mohamad ebrahimniya's picture

weld simulation

hi every body

nice to meet all of u

i am a metallurgical engineering. and recently i am trying welding residual stress simulation using abaqus .

i
have some problem .i think i should set a thermal history for the material
witch is welded in simulation. i want to know how can i set a temperature
dependant properties like tensile stress or  yield stress and ...

unknown error message.....

hi,

I just started working on composites. when i applied the load on one side of the panel, ansys is giving me an error, stated

' large pivotal value. you had given temparature dependent material property', but i'm doing just a static analysis.

i searched for this error in the help menu, but couldnt found any help.

any info regarding this will a great help for me.

mitra

td's picture

USNCCM-10: Ab initio and intermediate atomistics in computational nanomechanics

10th US National Congress on Computational Mechanics
July 16-19, 2009. Columbus, Ohio

Minisymposium 2.2.5  Ab Initio and Intermediate Atomistics in Computational Nanomechanics 

Organizers: 

Traian Dumitrica, University of Minnesota

Boris I. Yakobson, Rice University 

a littel help with composite analysis with ansys

hello!

i am completely new using ansys for composites. any suggestions regarding 'how to start' and 'what to refer' will be of great help for me.

please anyone help me out with this, i has to do 'fatigue analysis of composite laminate' as the part of my project work.

thanks in advance.

mitra

Alejandro Ortiz-Bernardin's picture

Compiling and Building TAUCS a library of sparse linear solvers

I would like to share the following information to all the iMechanica users interested in using TAUCS a library of sparse linear solvers. TAUCS is among the most used libraries of sparse linear solvers and, to my knowledge, its closest equivalent library is SuperLU. For your reference, TAUCS is used in the commercial software Mathematica by Wolfram Research. Its source code can be downloaded from

http://www.tau.ac.il/~stoledo/taucs

Dsflux or Dflux

Hi Every one, 

I noticed one thing about specifying surface flux in abaqus/cae.  I specify user-defined surface flux in abaqus/cae, but the inp-file  writes *DsFlux as seen in the following lines,

** LOADS
**
** Name: Load-1   Type: Surface heat flux
*Dsflux
_PickedSurf28, SNU, 10.

When I submit the Job, I see this error

Error in job Essai: USER SUBROUTINE DFLUX IS MISSING
Job Essai: ABAQUS/Standard aborted due to errors. 

Can one help me

surface finish

hello every one

i am a student who is doing a project on surface finish of a turbine blade,

presently the surface roughness is 11.8 microns and i am trying to decrease the surface roughness to 0.1 micron

kindly suggest me the methods to acheive the above mentioned objective 

thanking you

angad

Shailendra's picture

Post-doctoral postion in Mechanical Engineering at NUS

I have an opening for a post-doctoral position starting early next year (Jan 2009) in the broad area of multi-scale mechanics of nano-crystalline (nc) materials. The focus will be on microstructure mediated failure processes in nc materials primarily using continuum mechanics based approaches, but informed by materials science.

If you are interested, please send me (shailendra[at]nus[dot]edu[dot]sg) your CV and the names of at least two references.

Thanks,

~Shailendra

Lecturer/Senior Lecturer in Maintenance Management in Australia

Faculty of Sciences, Engineering and Health
QLD, Australia
Continuing, Full-time

Lecturer - total remuneration range from $78 485 to $93 202 per annum includes salary from $67 081 to $79 660 per annum and employer superannuation plus annual leave loading.

Senior Lecturer - total remuneration range from $96 142 to $110 571 per annum includes salary from $82 173 to $94 505 per annum and employer superannuation plus annual leave loading.

polymer material analysis in ansys

hey guys,

             i am doing a project on composite polymer materials and i am really in a terrible state with no knowledge about how i am going to analyse polymer materials in ansys. If anybody else has the details or idea please send me the data.

 

A.Jabary's picture

Modeling anisotropic hyperelastic material

Recently I work on Finite Element Modeling of human eye .  And focus on cornea .( the outer transparent layer of human eye) . Based on Its structure which consist of collagen fibers I have to use the Anisotopic hyperelastic model . And I derived the coefficients of
strain energy function which divided into three terms of :  volumetric,isotropic and anisotropic

Regarding ABAQUS installation

Can any body help me regarding abaqus v6.7-3 installation. I am facing problem while installing the abaqus product. It asks license server 1. As I enter there 27000@host ID a massage comes that

"there was a problem constructing the value for the abaquslm_license_file parameter to be entered in to your abaqus_v6.env file. Please enter the value for this variable exactly as it should apear in the environment file"

Plz help me regarding this problem

 

DHPA Dinosaur Fellowship

Please note that the DHPA award is no longer available. We look forward to Ms Zartasha Mustansar joining us in January 2009.

marc material on 2d orthogonal cutting

hai

i am a student who is working on marc in order to simulate the cutting forces (orthogonal),

so ppl plz do pass any material if u have any regarding this subject

my e mail id is p.pradeep@live.com

thanking you

pradeep

Interlaminar Stresses

Dear Sir/Madam,

Interlaminar stresses in Composites

I have modelled Plain Stress problem in hypermesh(Input deck is created in Hypermesh to solve in Abaqus).Layup sequence is [0/90/90/0], am getting the Stresses( σ11, σ22, σ12) in top and bottom layers only, but unable to get the stresses at each Interface, If any one knows how to write the code, please reply back.

Gang Feng's picture

Tenure-Track Faculty Position in Materials Science at Villanova University

The Department of Mechanical Engineering seeks an outstanding individual for a full-time tenure-track position in materials science with emphasis on the fabrication of micro and nanoscale materials and devices. Especially encouraged are applicants with interest in sustainable energy. The opening is at the Assistant Professor level but candidates with strong records will be considered for appointment at a higher level.

Forces during Deep rolling

For Sphere to cylinder contact what r the type of forces generated during rolling

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