Hi,
I am currently using subroutine DLOAD to add load to my model.
I also have a additional subroutine to read some time histories which will be further used by DLOAD.
I am now using text file (the data is quite big, up to 100Mb), it seems that abaqus takes quite long time at the first time...
Hi, friends from ENG-TIPS,
I am using ABAQUS for structure dynamic analysis.
There are different elements in my model.
I was wondering the difference between defining damping coefficients in material and defining them as 'Global Damping' during dynamic analysis.
I tried to give some impulse...
Hi Bartosz,
Thanks for all your help and good instruction for this topic.
My subroutine is now working.
I am moving to the next step (using UEL to add extra damping and stiffness to my model).
Do you have any reference material in mind that maybe helpful for my next step?
Thanks in advance!
Hi Bartosz,
It's another great suggestion!
! keep values in memory
save rPrevCOORDx
save rPrevCOORDy
save rPrevCOORDz
save rPrevTIME
Is it correct that we need to declare 'save' in the beginning, then they are saved as global variables
(can be transferred to the subroutine for next time...
Hi Bartosz,
Thanks for your advice!
It's a great idea:) I'll update them.
A next step for me right away is to actually update my element load for each time step.
In fact, 'F' in my case is also depending on the motion of the element as well (F is related to element displacement and velocity)...
Hi Bartosz,
Sorry, it seems that I haven't upload the .dat file successfully.
I think I have fixed the problem.
I am using the following to define 'F'. I have double the size of FY (I define FFY as FFY(odd number)=element load, FFY(even number)=element load, same for FFZ below)
IF...
Hi Bartosz,
Thanks for your detailed instruction.
I have now output the element number using
call GETPARTINFO(NOEL, 1, CPNAME, LOCNUM, JRCD)
iUserId = LOCNUM
WRITE(6,*) CPNAME,NOEL,NPT,KINC,iUserId
The output looks like:
PART-1-1...
Hi Bartosz，
Sorry for calling for Akabarten:)
Thanks for your suggestion, I tried to add 'JLTYP', and I think from .dat file, it's now associated with JLTYP. I also tried to use 'call GETPARTINFO', but abaqus keeps give me error, I am not able to get the NOEL from that.
Back to my question...
Hi Akabarten,
Thanks so much for your detailed help!
Indeed, I was not using the part assembly for my input file, but the Flat inputdeck as you mentioned.
My input file related to DLOAD subroutine looks like this:
*Dload
**LOADELEM is the element set I need to apply loads
LOADELEM, PYNU...
Hi everyone,
I am currently working on the ABAQUS SUBROUTINE to apply line loads on beam.
In my model, there are different parts, the part I am going to apply loads using 'DLOAD' has been defined with element number from 1 to 38, 39 to 76 and 77 to 114. I also have connector element and mass...
Yes, I just read the 'WRITE SUBROUTINE WITH ABAQUS' manual, I noticed that it's quoted in URDFIL that data can be transferred through COMMON BLOCK to other subroutine. But I didn't find a relevant example. Now the question would be will ABAQUS call subroutine DLOAD first or URDFIL first...
Hope...
Hi,
Thanks again for your prompt reply!
Although I am not using a surface load in my model , I am using beam elements, but I think I understand your comment then.
Hope you don't find it bothering, are you familiar to URDFIL? If you are, do you know whether it's possible to read some data from...
Hi,
Thanks for your reply!
If I understand it correctly, I shall *DLOAD the whole element set and then use IF to define different force for different elements inside the subroutine, right?
I am also wondering since I need to read some data from a outside data file to calculate my load, do you...
Hi all,
I am new in ABAQUS, now try to perform some dynamic analysis for a bridge.
I am using beam elements for my model.
Now I am working on the subroutine to apply the wind and associated loads in the bridge.
The load is coupled with the structure motion, that's why I am using subroutine...
