Square Plate Out-of-Plane Vibration (solid mesh)
Natural frequencies of a solid simply supported plate are determined. Differences between constant stress solid (elform 1), fully integrated S/R solid (elforms 2, -1 and -2) and fully integrated quadratic 8 node element with nodal rotations (elform 3) can be studied. Example 12 from Introductory Manual for LS-DYNA Users by James M. Kennedy.
https://www.dynaexamples.com/introduction/Introduction/example-12
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Square Plate Out-of-Plane Vibration (solid mesh)
Natural frequencies of a solid simply supported plate are determined. Differences between constant stress solid (elform 1), fully integrated S/R solid (elforms 2, -1 and -2) and fully integrated quadratic 8 node element with nodal rotations (elform 3) can be studied. Example 12 from Introductory Manual for LS-DYNA Users by James M. Kennedy.
*BOUNDARY_SPC_SET
*CONTROL_IMPLICIT_EIGENVALUE
*CONTROL_IMPLICIT_GENERAL
*CONTROL_TERMINATION
*DATABASE_BINARY_D3PLOT
*ELEMENT_SOLID
*END
*HOURGLASS
*KEYWORD
*MAT_ELASTIC
*NODE
*PART
*SECTION_SOLID
*SET_NODE_LIST
*TITLE
*KEYWORD
*TITLE
Simply Supported Square Plate: Out-of-Plane Vibration (solid mesh)
*CONTROL_IMPLICIT_EIGENVALUE
10 0.0 0 0.0 0 0.0 0 0.0
*CONTROL_IMPLICIT_GENERAL
1 0.0
*CONTROL_TERMINATION
1.000000 0 0.0 0.0 0.0
*DATABASE_BINARY_D3PLOT
1.000000
*ELEMENT_SOLID
*NODE
*BOUNDARY_SPC_SET
*PART
1 1 1 0 1
*SECTION_SOLID
1 1 1
*MAT_ELASTIC
1 8000.0002.0000e+11 0.300000 0.0 0.0 0.0
*HOURGLASS
1 6 1.0 0 0.0 0.0 0.0 0.0
*SET_NODE_LIST
1 0.0 0.0 0.0 0.0
1 37 73 109 145 181 217 253
289 293 297 301 305 309 313 317
321 285 249 213 177 141 105 69
33 29 25 21 17 13 9 5
*END
