A non-linear static analysis is carried out on a 100x100x2mm plate with one end fixed and a 1000N point load applied at the other end using an RBE2 element. A non-linear stress-strain curve is defined and assigned as the material property. Load steps are created referring to the constraint, load, and non-linear parameter collectors. The Nastran run is submitted and the output file checked for convergence details.

1. Non Linear Static Analysis of Plate with Point Load Z direction
NASTRAN (SOL 106 )
Carry out Static Analysis of Plate. Plate is fixed at one end & a
point load(1000 N) is applied at one end using RBE2 element.
Non linear material stress-strain curve is used as input.
Create plate of 100x100x2mm thick

2. Create load collector to define the Material Stress-Strain Curve
Enter True Stress-Strain Values . First Pair should be 0.0 , 0.0
X- Strain Values , Y-Stress Values
Card image = TABLES1
Enter no. of data points

3. Create load collector to define the Non-linear Analysis Parameters
Card image = NLPARM

8. TABLES1 Material Property Table, Form 1

9. TABLES1 Material Property Table, Form 1

10. TABLES1 Material Property Table, Form 1

11. Create Material & Attach the Stress-Strain Curve Specifying TID
TID – Table Identification No. of TABLES1 load collector created to
define the stress-strain curve.

12. Create load collector for applying constraints
The created loadcol is set as current loadcollector

13. Select nodes for fixing the plate at one end
Load type – SPC (Single Point Constraints) Set loadcol as fix

14. Create load collector for applying load in Z-direction
The created loadcol is set as current loadcollector

15. Create load steps
Load collector
names with ID’s
Select SPC load collector with loadcol ID - 1
Select LOAD with loadcol ID - 2
Select NLPARM with loadcol ID - 3
First Click create & then edit

16. Scroll to select
the parameters
Select Parameters as shown below

19. Submit Nastran Run
Click On the Shortcut to open the
file. Select the file
In command Info window
Type
SCR=YES OLD=NO

20. Check the output file .f06 for convergence details

21. Check the output file .f06 for convergence details