A simply supported plate of equal side length is subjected to a normal pressure on the top face. Differences between Belytschko-Tsai-Shell (elform 2), Hughes-Liu-Shell (elform 6) and fully integrated Shell (elform 16) can be studied. Example 1 from Introductory Manual for LS-DYNA Users by James M. Kennedy.
*CONTROL_IMPLICIT_GENERAL *CONTROL_IMPLICIT_SOLUTION *CONTROL_SHELL *CONTROL_TERMINATION *DATABASE_BINARY_D3PLOT *DATABASE_ELOUT *DATABASE_HISTORY_SHELL *DEFINE_CURVE *ELEMENT_SHELL *END *KEYWORD *LOAD_SEGMENT *MAT_ELASTIC *NODE *PART *SECTION_SHELL *TITLE
*KEYWORD
*TITLE
Skew Plate with Normal Pressure (thin shell mesh)
*CONTROL_IMPLICIT_GENERAL
1 0.0 2 1 2
*CONTROL_IMPLICIT_SOLUTION
1 11 15 0.001000 0.010000 0.0 0.900000 1.000000
2 1 1 2
0 1 0.0 1 2
*CONTROL_SHELL
20.00000 0 0 0 2 2 1
0.0 1
*CONTROL_TERMINATION
1.000000 0 0.0 0.0 0.0
*DATABASE_ELOUT
1.0E-01
*DATABASE_BINARY_D3PLOT
0.100000
*DATABASE_HISTORY_SHELL
6 7 10 11
*DEFINE_CURVE
1 0 0.0 0.0 0.0 0.0
0.0 0.0
1.00000000 700.0000000
*ELEMENT_SHELL
*NODE
*PART
1 1 1
*SECTION_SHELL
1 2 0.0 5 0 0.0
0.010000 0.010000 0.010000 0.010000 0 0.0
*MAT_ELASTIC
1 7800.0002.1000e+11 0.300000 0.0 0.0 0.0
*LOAD_SEGMENT
1 1.000000 0.0 1 6 7 2
1 1.000000 0.0 2 7 8 3
1 1.000000 0.0 3 8 9 4
1 1.000000 0.0 4 9 10 5
1 1.000000 0.0 6 11 12 7
1 1.000000 0.0 7 12 13 8
1 1.000000 0.0 8 13 14 9
1 1.000000 0.0 9 14 15 10
1 1.000000 0.0 11 16 17 12
1 1.000000 0.0 12 17 18 13
1 1.000000 0.0 13 18 19 14
1 1.000000 0.0 14 19 20 15
1 1.000000 0.0 16 21 22 17
1 1.000000 0.0 17 22 23 18
1 1.000000 0.0 18 23 24 19
1 1.000000 0.0 19 24 25 20
*END
