Page 203 - Using ANSYS for Finite Element Analysis Dynamic, Probabilistic, Design and Heat Transfer Analysis

190 • using ansys for finite eLement anaLysis
mp,nuxy,1,0.3 ! Poisson’s ratio
smrt,3
amesh,all
eplot
finish
! LOADING
! -------
/solu
csys,1
lsel,u,loc,y,1,59
dl,all,,symm ! Symmetry b.c.
csys,0
lsel,,loc,x,100
sfl,all,pres,-50 ! Pressure load (MPa)
lsel,all
lplot
! SOLUTION
! --------
eqslv,pcg
solve
! POSTPROCESSING
! --------------
/post1
plnsol,s,eqv ! Equivalent stress contours
/dscale,,off ! Displacement scaling off
/expand,6,polar,half,,60
!Symmetry expansion
/replot
/expand
!Retrieve max equivalent stress & volume
nsort,s,eqv
*get,smax,sort,,max
! smax = max. equivalent stress
etable,evol,volu
ssum
*get,vtot,ssum,,item,evol
! vtot = total volume
finish
2. Enter the optimizer and identify analysis file
In the next several steps of this problem, you optimize the design. The
overdesigned steel plate under tension loading of 100 MPa needs to