Keyword type: step
With this option one can redefine material properties within a step. There is one required parameter NAME, denoting the name of the *MATERIAL. Right now, only plastic data of an elastically isotropic material with explicitly defined isotropic or kinematic hardening data can be changed. This card must be followed by a *CHANGE PLASTIC card to have any effect.
First and only line:
Example: *CHANGE FRICTION,NAME=PL
indicates that the plastic data of material PL are to be changed to the values underneath the following *CHANGE PLASTIC card.