iMechanica - ABAQUS Tutorial and Assignment #1 - Comments

thanks

özkan özcan — Sat, 15 Nov 2008 18:14:57 -0500

Teşekkür ederim Barış & thanks a lot Nanshu Lu.

Best Regards

Özkan Özcan

eigenvalue , eigensolver , eigenfrequensy , eigenmode

ho1mo — Fri, 24 Oct 2008 04:03:42 -0400

Can every body explain me about "eigenvalue , eigensolver , eigenfrequensy , eigenmode"?

Thanks in Advanced

Ho1mo

tanx

darda — Mon, 06 Oct 2008 14:57:58 -0400

Hi MS. Lu,

I found this link very helpfull.

about FSW and LBW

Xiaoteng Wang — Mon, 06 Oct 2008 06:20:58 -0400

Hi Mirko,

I think FSW is quite different from laser beam welding. Although both of them are joining process, the mechanism of FSW is far away from the traditional arc welding. So before your start, please decide which branch you should choose because both are not so easy to study. For FE simulation, I only carried out FEM calculation of arc welding, such as TIG, MIG and Laser. I highly recommend you to read Goldak's first paper of double eclipsoid welding pool model:COMPUTER MODELING OF HEAT-FLOW IN WELDS, METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY 17 : 587 1986. That paper is a classical work.Another review is also good: Modeling of fundamental phenomena in welds,T Zacharia / J M Vitek / J A Goldak / T A DebRoy / M Rappaz / H K D H Bhadeshia,Modelling and Simulation in Materials Science and Engineering,3 (2), p.265-288, Mar 1995.

I dont know if the newest version of ABAQUS provides the Goldak model or not. But another FE software MSC.MARC has already succeeded in implementation of Goldak model as GUI module. Anyway you can implement the model easily using subroutines.

FSW is still very difficult to model, because the FSW is not simply melt and solidification process. Dynamic recrystallization taks place dramatically in FSW. I think the FE simulation of FSW is much more difficult than arc welding.

I'm not sure what kind of problem you are interested in, but from what you described, I think your work may be related to residual stress/strain after welding or joining process. I think it is very challenging problem because of the highly nonlinear material properties and coupled phenomena. Good luck.

Best regards.

Wang

Structural effects due to thermal influences (e.g. laser, FSW)

Langhorst — Sun, 05 Oct 2008 07:52:21 -0400

Hello to everyone

I am doing my PhD at the Technical University of Munich (Germany)
and I want to simulate the structural effects of work pieces due to the thermal influence
of manufacturing processes like laser-beam-welding, laser-beam-cutting or
friction-stir-welding. Unfortunately I am more or less a beginner in ABAQUS,
but perhaps you can give me an advice how to start (a special tutorial for
thermal problems) or if it’s possible to simulate these kind of problems at all.

I would be deeply grateful for any help and

thanks a lot in advance

Mirko

Great Work

Nisarg Patel — Tue, 16 Sep 2008 03:33:10 -0400

Thanks nanshu lu.....for share tutorial with others....

Analysing a Horizontally curved Beam/girder

mithila — Sun, 10 Aug 2008 09:02:59 -0400

hi,

can tou tell me the way of analysing a horizontally curved beam by ABAQUS?

can anyone tell me what are

omid2008 — Wed, 30 Jul 2008 13:03:07 -0400

can anyone tell me what are the differences between ANSYS and Abaqus?

Composite and Adhesive modelling in abaqus

arunachetty — Tue, 29 Jul 2008 17:45:11 -0400

hello

i am arun and am doin my msc in astronautics at cranfield university,uk, and am using abaqus to simulate a single shear composite to metal bolted/bonded lap joint using solid elements for my thesis

could you please advise me on how to model composite laminates using solid elements?

could you also please advise me how to model the adhesive that joins the composite and metal substrates and what type contact conditions should i specify?

i will be most grateful if you could respond to my query, Thank you very much

need help with ABACUS

nina333 — Wed, 09 Jul 2008 13:24:09 -0400

hello Lu,

I do thank you for your tutorials. But as i have tried the CAE example and i just manged to let work i tried to do my own model by creating part and i wanted to divide it but i did not find any help neither in simuli or tutorial or any other source to guide me on what i want to do basically. I hope if you can help me by emailing me so i can ask you directly please.

nl1422@hotmail.com

thank you

Nina

update on Tutorial for Abaqus UEL subroutine

Y. Kajee — Mon, 30 Jun 2008 08:25:22 -0400

Greetings

I have recently begun work on developing my own user element in abaqus. It is not as easy as I thought it would be.

Have you had any luck finding any tutorial or other help on UEL subroutines since your post here?

Regards

Thanks!

zhangqian — Sat, 07 Jun 2008 02:17:38 -0400

Thanks for your excellent work,Mandam!

I love mechanics!

need urgent help

nina333 — Fri, 23 May 2008 18:04:13 -0400

dear all

I need help in my work i started to work with ABACUS and i suppose to work with shoulder data to review the reverse implant inside this shoulder.

i can not explain this very well but i need some expert in ABACUS to ask them what to do exactly or at least get me started.

Pleaseeeeeeeee i need an URGENT help......FROM ANY ONE.

please reply to me on: nl1422@hotmail.com

Thank you

Nina

Please try the solid

Kewei Li — Fri, 23 May 2008 09:51:01 -0400

Please try the solid composite property in ABAQUS 6.7. It is designed for this problem.

Good luck in your research!

Kewei Li

Shanghai University

Using MATLAB functions/scripts in user interfaces in ABAQUS

alankar — Tue, 20 May 2008 22:00:27 -0400

Hi,

Could anybody please let me know if it is possible to use MATLAB functions/scripts in ABAQUS user interface UMAT ?

Regards ,

Alankar
Ph.D. Student
School of Mechanical and Materials Engineering
Washington State University, Pullman

ABAQUS Tutorial and Assignment #1

Nanshu Lu — Mon, 30 Oct 2006 11:28:42 -0500

1-1 ABAQUS Tutorial: Schedule & Proceedings

1-2 Learning ABAQUS: Begin with ABAQUS Command

1-3 Computer Assignment #1: Plate with circular hole

1-4 CAE Example: Having a sense of ABAQUS CAE