ABAQUS--Subroutine *DLOAD
ABAQUS--Subroutine *DLOAD
(OP)
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 *DLOAD to apply loads.
I am wondering for different part of my FEM elements, different kind of DLOAD may be used (simply different expression for DLOAD).
Is there anyone who have experiences on such topics? Your suggestions and help are highly appreciated.
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 *DLOAD to apply loads.
I am wondering for different part of my FEM elements, different kind of DLOAD may be used (simply different expression for DLOAD).
Is there anyone who have experiences on such topics? Your suggestions and help are highly appreciated.





RE: ABAQUS--Subroutine *DLOAD
RE: ABAQUS--Subroutine *DLOAD
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 recommend to define these data as array inside subroutine or I read the data file? Which is more efficient? I am running a dynamic analysis. For each increment, I need to run subroutine to DLOAD, in side DLOAD, I need to read this data.
Thanks!
RE: ABAQUS--Subroutine *DLOAD
Reading data is a different topic and I'm not very familiar with that. But I'm quite sure that it is faster to have the data in the subroutine than reading it from an external file.
RE: ABAQUS--Subroutine *DLOAD
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 ODB file using subroutine URDFIL and pass to my other subroutine DLOAD?
Many thanks!
RE: ABAQUS--Subroutine *DLOAD
It is possible to have multiple subroutines in one file. I think they can exchange data through common blocks, but I've never done that. Check if you can find an example in the manuals.
RE: ABAQUS--Subroutine *DLOAD
Hope it's the URDFIL first since it's the one to postprocess result file.