Learning UMAT subroutine with a simple example | How to write UMAT subroutine in Abaqus?

[@merthanozdemir3738]

At 16:00, it is stated that NTENS=12, but I couldn't understand it. Isn't the NTENS=6, and the total number of variables for strain is 12 which also makes dependent variables 12.

[@caeassistant7734]

Hi, thanks for your comment. You're right. sorry for our mistake and thanks for noticing and informing us. The NTENS=6 and the number of state variables equal 12.