Hi
I need to post-process the stiffness matrix (obtained by ANSYS) of a pre-stressed structure. I did the following passages after builiding and loading opportunely my FE model
/SOLU
ANTYPE,STATIC
!*NLGEOM,ON
PSTRES,ON
ematwrite,yes
SOLVE
FINISH
/SOLU
ANTYPE,2
UPCOORD,1.0,ON
MODOPT,LANB,24
EQSLV,SPAR
MXPAND,24, , ,0
LUMPM,0
PSTRES,ON
MODOPT,LANB,24,0,1000, ,OFF
ematwrite,yes
/STATUS,SOLU
SOLVE
FINISH
I expect that the EMAT file contains both stiffness and stress stiffening matrices but the stiffness matrix that I obtain is exactly the same of the unstressed structure.
Can anyone help?
I need to post-process the stiffness matrix (obtained by ANSYS) of a pre-stressed structure. I did the following passages after builiding and loading opportunely my FE model
/SOLU
ANTYPE,STATIC
!*NLGEOM,ON
PSTRES,ON
ematwrite,yes
SOLVE
FINISH
/SOLU
ANTYPE,2
UPCOORD,1.0,ON
MODOPT,LANB,24
EQSLV,SPAR
MXPAND,24, , ,0
LUMPM,0
PSTRES,ON
MODOPT,LANB,24,0,1000, ,OFF
ematwrite,yes
/STATUS,SOLU
SOLVE
FINISH
I expect that the EMAT file contains both stiffness and stress stiffening matrices but the stiffness matrix that I obtain is exactly the same of the unstressed structure.
Can anyone help?