I have problems in the calculation of the tangent matrix terms in an Abaqus UEL subroutines, do you have suggestion on how to take tensor derivatives? For example: $$ \frac{d\underline{\underline{T}}}{d\underline{\underline{F}}}=\frac{d}{d\underline{\underline{F}}} \left( a\underline{\underline{F}}^{-T}\right) $$ where $a$ is a constant.

Thank you.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.