Getting element ids from contact

[ShaileshFle]

I need to get element ids of a named selection and then check if its element type is 174 for it to be a contact element and then append it in a list. But I am not even able to get element ids of the named selection. Can anyone help in this. here is the apdl code, need to change it in pymapdl

component = 'CONTACT'

cmsel,,component				                !select Contact Faces acc. component
esln                                            !select related Elements

ESEL,R,ENAME,,174                               !Reselect all Contact Elements in Set

*GET,nelem,ELEM,,COUNT                          !count number of selected nodes on Faces

en=0                                        	!initialize Elem Number to 0

*dim,elem_data,,nelem,2

*do,i,1,nelem                               	    !loop over nodes  
   en = ELNEXT(en)                            	    !next higher node number to nn  
   elem_data(i,1) = en                      	        !save node number to array
   *GET, elem_data(i,2), ELEM,en,AREA
*enddo

*status,elem_data

[germa89]

Hi @ShaileshFle

Presumably this code should work:

component = "contact"
mapdl.cmsel("s", component)

mapdl.esln()
mapdl.esel("r", "ename", "", 174)

list_elements_ids = mapdl.mesh.enum

[ShaileshFle]

Hey, Thanks for the response, this works. But can you also suggest on how to get the area of those contact elements extracted?

[germa89]

Hi

you can do something like this:

component = "contact"
mapdl.cmsel("s", component)

mapdl.esln()
mapdl.esel("r", "ename", "", 174)
mapdl.starvget("areas_array", "area", 0, "area")
areas_array = mapdl.parameters["areas_array"]  # Getting numpy array.

Reference: mapdl.starvget