I am Evaluatin Prony series coefficients in a viscoelastic material Model with Abaqus. As the Basis of the calculation i implemented Data of an volumetric creep test.
[Time] 1 3 6 12 30 60 124 302 553 1463 3103 3326 4546 10476 11570 15893 21754 25954 31891 40320 46137 54893 63759 70983
[jk] 2.777 2.886 3.037 3.206 3.464 3.670 3.941 4.315 4.605 5.027 5.311 5.359 5.504 5.823 5.841 5.926 6.004 6.179 6.317 6.378 6.450 6.559 6.565 6.667
As i try to evaluate my material Abaqus aborts because of this errors:
Error in job Material-1-Copy_6: in keyword *VOLUMETRICTESTDATA, file "Material-1-Copy_6.inp", line 19: Value cannot be converted to a double: NONE
Error in job Material-1-Copy_6: INVALID FLOAT VALUE FOR VOLINF
Error in job Material-1-Copy_6: SYSTEM ERROR IN MATV2 - LOOP LIMIT EXCEEDED
Does anyone know how to solve this problem?