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Field variable dependence for hyperelastic materials in Abaqus


milan85
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(@milan85)
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Joined: 6 years ago

Hi,

I am trying to degrade material constants for a hyperelastic mooney-rivlin material using a field variable. I am trying to follow the example syntax given below. (These are lines from the .inp file)

*MATERIAL, NAME=SHEARDEPEND

*ELASTIC, DEPENDENCIES=1

This syntax works well for elastic materials, so, I tried to use it for hyperelastic mooney-rivlin case as follows:

*MATERIAL, NAME=MATERIAL-1

*HYPERELASTIC, MOONEY-RIVLIN, DEPENDENCIES=1

It seems like Abaqus does not recognize this. I get the following error message in my .dat file:

***ERROR: in keyword *HYPERELASTIC, file Job-5.inp, line-97: Unknown parameter: dependencies. The parameter may be misspelled, obsolete, or invalid.

Can someone tell me where I am going wrong?

Thanks,

Shruti

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