15 December 2022 2 764 Report

I exported the global stiffness matrix for my linear elastic instance in Abaqus, by attaching the following commands to the input file:

** Output Global Stiffness Matrix

*Step, name=Global_Stiffness_Matrix

*MATRIX GENERATE, STIFFNESS

*MATRIX OUTPUT, STIFFNESS, FORMAT=MATRIX INPUT

*End Step

However, the resulting matrix has most of the diagonal elements with very large values, for example:

1635,3, 1635,3, 1.000000000000000e+36

Why is this happening? And how could I solve?

Thanks!

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