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hi everyone,

                   iam doing M-Tech project on finite element anlysis of composite plate using piezo layers. can anybody guide me pleaseeeeeeeeeeeeee

Hi everyone,

Has anyone ever come across the treatment of radiation heat transfer in one-dimensional beams using FEM ? Convection and conduction are well established, but I was wondering whether radiation is still an open area of research?

 Any links to publications would be very much appreciated, Thank you

Safety Engineering and Risk Management Debate 2012

Which one is better, MyAberdeen or iMechanica, for debating topics relate to safety engineering and risk management?

Hello,

 I understand from word of mouth, as well as an extensive study/Master'sThesis (http://publications.lib.chalmers.se/records/fulltext/164269.pdf), that Abaqus XFEM formulation works, but that processing of results to obtain reported SIF (KI, KII, KIII, not sure about J, others) are in error due to apparent bugs in Abaqus's algorithm to calculate the SIFs.

Hi

my problem is that when I use print command in my subrutine VUMAT ,the results changes and sometimes abaqus stops with an error.

do you think is there any problem with my VUMAT or this problem is a routine problem with VUMAT subroutine?

thnaks for your help

REGARDS

Hi

my problem is to define initial value for solution dependent state varibales in Vumat.when I define them in .log file the same as help,it doesn,t work and the error is your'e defining initial condition for element zero while this elemet doesn,exist.what can I do for solving this prolem.

thanks alot

REGARDS

I am doing simulation of fiber reinforced composites, for that I have modelled a cubic REV. However , when I am constraining the opposite faces' node displacement sum to be 0 and coupling the nodes in each face in the direction perpendicular to the area, ANSYS is coming out . I have tried this on i7 processor with 8GB RAM system. I am confused if its a RAM problem or a model problem. If there are too many constraints if I apply coupling as well as constraint???

Hi every body

I would like to print some results obtained within an VUMAT to a file, for later post processing. I use the "Write(6,*) command" but it does not work. any help?

Hello,everybody

 Can somebody help me,I need to do a thermal -fluid-structural analysis in abaqus.I did thermal-structural but alsoi i need to add CFD anylysis of natural convectio

the best way in abaqus..Is it possible to calculate natural convection and buyoancy drivenn flow in abaqus CFD as a coupled problem with thermal-structural analysis

if yes,how? 

Thank you for every idea

Hello everyone,

  I am currently teaching an undergraduate mechanics of materials course.  I would like to spend one class period on contemporary issues.  I am wondering what suggestions mechanicians may have.  I have noticed in recent years that several topics are of interest.

1. thin films

2. soft tissue/soft materials

3. fracture mechanics

(I must add I personally don't know much about these, but I see these come up often. )

Sorry 

I beg your pordone  if post the comments sequentially.

 My mean was that if i want to define it in the subroutine, is it true??? 

Thanks 

Hi, i am going to run my Experiment for tensile testing of different steel samples at different strain rates ofcourse it is Medium strain rate (1*10-1  - 1*103 s-1 ). and my quetion here is how to adjust my strain rates on this machine? is the cross head speed a strain rate?  if that is the case i think the cross head speed of the machine i am going to use is max. 15 mm/s. so  it is very small for my ranges to apply . any one can help me or give me comment on this issue.

I appriciate any help that comes to me.

Dear all. Most of us are working already or planning join to oil and gas industry as an engineer,so you will do routine jobs frequently. I would like to share incidents/accidents and near misses those happened in the rig where I work and explain reasons ,how to avoid them. I hope you will benefit from this information in you future career. 

TOPIC 1 

Uncontrolled
release of energy in the top drive

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