Use python script to call the Gradient matrix.

On Mon, Jul 20, 2020 at 12:52 PM bbah123

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>

>

> Hello

> i am using a UMATH subroutine together with USDFLD Subroutine. I get the

> hydrostatic stresses from USDFLD and need to calculate the stress gradient.

> Does anybody know how to calculate the B-Matrix in a UMAT or UMATH

> subroutine or how to calculate the stress gradient ?

>

> Best regards

>

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>