Hi Dushyanth,

You can delete each parts easily using the side bar menu in the left (tree menu), just find the name of your model or "model-1" and click on parts, so you will see each part's name there and you can right-click on each one and delete them.

I am sorry Hossein Sadeghi Moghaddam. I mean to ask when strain in any element exceeds some value, then can we delete the whole part using any of the subroutine?

Dushyanth Rudra Mahesh Velugubantla ,

the most common way to do this is to add an integer flag in the properties array with the value of 1 if the element belongs to the specific part, and 0 if it does not. Then, in a global variable (where you have access for all elements) you can have another integer, where it starts with value of 0, and becomes 1 when the first element of the part has strain exceeding some value. Finally, for every element in the umat that belongs to this part, if the global variable is 1, you can delete it manually.