Axial1 
  
ET,1,Pipe16      ! type 16 is a pipe
R,1,dia1,dia1/2  ! diam, wall thickness
R,2,dia2,dia2/2

!  the following is an alternative method
! pi = (4*atan(1))
! ET,1,Link1         ! Type 1 is a spar or link
! R,1,(pi/4*dia1**2) ! Area 1
! R,2,(pi/4*dia2**2) ! Area 2

F,1,FX,p1        ! force at node 1

============
  Torq1

ET,1,Pipe16        ! type 16 is a pipe
R,1,dia1,dia1/2    ! diam, wall thickness
R,2,dia2,dia2/2

F,1,MX,torq1       ! moment at node 1