problem while using *DLOAD command in ABAQUS

[kevin128]

Hello,


I have few questions but if you just have a answer for one of them, please tell me.


In order to compute a compliance function, I want to insert several load profiles in a workpiece.


I know that it can be done using the Dload subroutine in fortran but I have a real problem while compiling fortran so I gave up that way.
Instead, I'm using dload (not the subroutine), and I apply a uniform distributed load (computed with matlab) on each element separetely. So far, is there any mistake ?
So I write for example in abaqus :


*Elset, elset=DISTLOAD, instance=PART-1-1
391,
**and later on
*STEP
*STATIC
*DLOAD,OP=Mod
Assembly.DISTLOAD, P4, 1.
*END STEP

and When I launch the job, it is crashing and in the .dat file, it is written:


*dload, op=MOD


***ERROR: EITHER AN ELEMENT SET OR AN ELEMENT MUST BE SPECIFIED FOR A DLOAD
LINE IMAGE:



***ERROR: LOAD/FLUX/FILM/RADIATION TYPES MUST BE LABELS
LINE IMAGE:


Do someone understand this error because I specified a set of element ?
Then I tried to do it in abaqus CAE to check the syntax in the .inp file but it appeared that Dload on element is not possible in abaqus CAE, only dsload and on surface so not inside the material as I want to do.

Thank you for your help

Kevin

 

[mrgoldthorpe]

Instead try:

*DLOAD,OP=Mod
DISTLOAD, P4, 1.

I don't think ABAQUS likes the Assembly prefix

 

[kevin128]

In fact both are working, with and without the assembly prefix.
The problem in my script was that I had a blank line not commented after the DLOAD line and I didn't know that ABAQUS was considering these lines.

Thanks anyway for your help