Introduction - If you have any usage issues, please Google them yourself
a constitutive model to simulate the superelastic behavior of alloys such as Nitinol (a nickel-titanium alloy commonly used in medical devices, such as cardiovascular stents and orthodontic wires) at finite strains is provided in the form of a UMAT subroutine for Abaqus/Standard and a VUMAT subroutine for Abaqus/Explicit.