A.6 Nonlinear skew plate

skew_nl.inp

*HEADING
Nonlinear Elastic Skew Plate.  20 kPa Load.
S.I. Units  (meters, Newtons, sec, kilograms)
**
** Nodal coordinates
**
*NODE, NSET=N1
1,  0.0,  0.0,  0.0
*NODE, NSET=N13
9, 0.0, 40.0E-2,  0.0
*NGEN, NSET=ENDA
1,9,1
*NCOPY, CHANGENUMBER=1200, OLDSET=ENDA, NEWSET=ENDB, SHIFT
100.0E-2,  57.7E-2,  0.0
0.0,0.0,0.0,1.0,0.0,0.0,0.0
*NFILL, NSET=ALLNODES
ENDA, ENDB, 24, 50
*NSET, NSET=MIDSPAN, GENERATE
601,609,1
**
** Element connectivity
**
*ELEMENT, TYPE=S8R5, ELSET=PLATE
1, 1,101,103,3,51,102,53,2
*ELGEN, ELSET=PLATE
1, 4,2,1, 12,100,10
**
** Physical and material properties
**
*SHELL GENERAL SECTION, ELSET=PLATE, MATERIAL=MAT1, 
ORIENTATION=SKEW
0.8E-2, 
*ORIENTATION, NAME=SKEW, SYSTEM=RECTANGULAR
10.0E-2, 5.77E-2,0.0, -5.77E-2,10.0E-2,0.0
3, 0.0
*MATERIAL, NAME=MAT1
*ELASTIC
30.0E9,0.3
**
** Local coordinate system
**
*TRANSFORM, NSET=ENDB, TYPE=R
10.0E-2, 5.77E-2,0.0,  -5.77E-2,10.0E-2,0.0
**
** History data
**
*STEP, NLGEOM=YES
Uniform pressure (20.0 kPa) load
*STATIC
0.1, 1.0
**
** Boundary conditions
**
*BOUNDARY
ENDA,ENCASTRE
ENDB,2,6
**
** Pressure loads
**
*DLOAD
PLATE,P,-20000.0
**
** Output requests
**
*OUTPUT, FIELD, FREQUENCY=2, VARIABLE=PRESELECT
*OUTPUT, HISTORY, FREQUENCY=1
*NODE OUTPUT, NSET=MIDSPAN
U, 
*NODE PRINT, NSET=MIDSPAN, FREQUENCY=2
U, 
*NODE PRINT, SUMMARY=NO, TOTALS=YES, FREQUENCY=2
RF, 
*END STEP

skew_nl_xpl.inp

*HEADING
Nonlinear Elastic Skew Plate.  20 kPa Load.
S.I. Units  (meters, Newtons, sec, kilograms)
**
** Nodal coordinates
**
*NODE, NSET=N1
1,  0.0,  0.0,  0.0
*NODE, NSET=N13
9, 0.0, 40.0E-2,  0.0
*NGEN, NSET=ENDA
1,9,1
*NCOPY, CHANGENUMBER=1200, OLDSET=ENDA, NEWSET=ENDB, SHIFT
100.0E-2,  57.7E-2,  0.0
0.0,0.0,0.0,1.0,0.0,0.0,0.0
*NFILL, NSET=ALLNODES
ENDA, ENDB, 24, 50
*NSET, NSET=MIDSPAN, GENERATE
601,609,2
**
** Element connectivity
**
*ELEMENT, TYPE=S4R, ELSET=PLATE
1, 1, 101, 103, 3
*ELGEN, ELSET=PLATE
1, 4,2,1, 12,100,10
**
** Physical and material properties
**
*SHELL GENERAL SECTION, ELSET=PLATE, MATERIAL=MAT1, 
ORIENTATION=SKEW
0.8E-2, 
*ORIENTATION, NAME=SKEW, SYSTEM=RECTANGULAR
10.0E-2, 5.77E-2,0.0, -5.77E-2,10.0E-2,0.0
3, 0.0
*MATERIAL, NAME=MAT1
*ELASTIC
30.0E9,0.3
*DENSITY
7800.,
**
** Local coordinate system
**
*TRANSFORM, NSET=ENDB, TYPE=R
10.0E-2, 5.77E-2,0.0,  -5.77E-2,10.0E-2,0.0
**
** History data
**
*STEP, NLGEOM=YES
Uniform pressure (20.0 kPa) load
*DYNAMIC, EXPLICIT
, 0.005
**
** Boundary conditions
**
*BOUNDARY
ENDA,ENCASTRE
ENDB,2,6
**
** Pressure loads
**
*DLOAD
PLATE,P,-20000.0
**
** Output requests
**
*OUTPUT, FIELD, VARIABLE=PRESELECT, FREQUENCY=2
*OUTPUT, HISTORY, VARIABLE=PRESELECT
*END STEP