×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

How can activate changing of temperature in a abaqus running?

How can activate changing of temperature in a abaqus running?

How can activate changing of temperature in a abaqus running?

(OP)
Hi
Does noone knowe how can i to activate temperature in abaqus procedure?
i know this ways?
property->temp depend
or
step->other->temperature
but in this ways we only add one(1) temperature but i want to changing this temperature step by step in all of the ranning
just same as changing of stress?
it is right that changing of stress is result of changing load but i want to know is any way that to activate changing of temperature in all of the running without of activating the thermal load or thermal step.
i want to do this in a general mechanical step.
regard
binam

RE: How can activate changing of temperature in a abaqus running?

You want a coupled thermal/stress analysis? You can apply the initial temperature to the wanted area through a predefined field, and then you can control it after the initial step by adding the following to the step portion of the input file.


*Temperature, amplitude= Temperature
NodeSet, 1

The amplitude is equal to the ramp you want your temperature to follow, nodeset being the set of nodes you want controlled (can be identified by the nodeset Abaqus assigned to the predefined temperature field), and the 1 is the scalar multiplier, most likely will be just one.

RE: How can activate changing of temperature in a abaqus running?

(OP)
Hi
Dear Nileo2005
thank for your reply and your favor
in the utemp there isnot term of DDSDDE and i think that only in umat is.because i work with umat for changing property of material and my project is composite.
and i had used from predefined field in a static general step but it cannot solve my problem because i want to chang temperature in any moment continuously automatically.
In fact my  questin:
I want to write a code of umat that in it I need to use TEMP and DTEMP.
now i want to know how can i activate these terms (TEMP & DTEMP)in cae file or in umat code .
i think they are inactive because when i wrote a umat code  and added this instructino:(write(6,*),temp ,dtemp) then  run with its abaqus cae file ,at the end ,when i checked the valu of them in temp file of C drive
i saw the valu of both of them were zero (0) but(while) i need and  expect that they get valu .
now what is the suggest of you for solve this problem?
Regard
binam  

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources