Sheldon Imaoka
Ansys Employee

Hi Venkat,

TB,CHAB and TB,CHABOCHE are the same.  (In APDL, a lot of commands and options can be referenced using the first four letters, so "CHAB" and "CHABOCHE" are the same.)

For the other question, it may be better to submit a new post.  Including an image, if it's not of a proprietary model, can be helpful for others to be able to help you with your question.