discussion: boundary conditions

maverickwp

I am confused about the options in *Boundary. In the manual it is said that *Boundary op=new will remove all new boundary conditions in previous steps, now given an example:

In step1, we have

*Boundary 1

Nodeset 1

*Boundary 2

Nodeset 2

In step 2

If we specify

*Boundary op=new

nodeset 3

Does it mean that all boundary conditions prescribed on nodeset 1 and nodeset 2 in step 1 are removed?

Another question is:

If in step 2, I want to keep all previous boundary conditions, in addition, I want to constrain another nodeset 4, How can I do it? just input

*Boundary (no options specified)

nodeset 4 ?

Thank you very much for your information!

byqiang143892

Yes. you are right!

maverickwp

Thanks a lot!