Hello everyone,

I am developing a FE model with cohesive elements in ABAQUS 6.13-1 . As mentioned in the "Linear elastic traction-separation behavior" paragraph of the Abaqus Documentation:

https://abaqus-docs.mit.edu/2017/English/SIMACAEELMRefMap/simaelm-c-cohesivebehavior.htm

a compression factor can be set for cohesive elements with uncoupled traction-separation behavior, so that their compressive stiffness is equal to the specified factor times the tensile stiffness. The only way to define the compression factor is to comprise the following command in the input file of the model:

*ELASTIC, TYPE=TRACTION, COMPRESSION FACTOR=f

and replace f with the desired value. (It cannot be specified in Abaqus/CAE)

However, when I submit the job input file, the Analysis Input File Processor aborts the job with the error shown in the attached image.

Has anybody encountered the same problem?

Should I type this command in another way to make it acceptable?

Maybe it could be attributed to my version of ABAQUS and a more recent version is required to recognise this command?

P.S. The analysis runs and the results are exportable without any problem when the compression factor definition is not included in the input file. Also, the names of the job and the input file have knowingly been removed from the attached image.

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