# Transient Response of Cylindrical Disk — Welcome to LS-DYNA Examples

Home » Knowledge Base » Simple Examples » Intro by Jim Kennedy » Transient Response of Cylindrical Disk

A cylindrical disk hits a deformable surface. Suitable contact algorithm is chosen. Example 16 from Introductory Manual for LS-DYNA Users by James M. Kennedy.

## Keywords

```*CONTACT_2D_AUTOMATIC_NODE_TO_SURFACE
*CONTROL_IMPLICIT_AUTO
*CONTROL_IMPLICIT_DYNAMICS
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLUTION
*CONTROL_IMPLICIT_SOLVER
*CONTROL_TERMINATION
*DATABASE_BINARY_D3PLOT
*DATABASE_GLSTAT
*DATABASE_HISTORY_NODE
*DATABASE_MATSUM
*DATABASE_NODOUT
*DATABASE_RCFORC
*DEFINE_CURVE
*ELEMENT_BEAM
*ELEMENT_DISCRETE
*ELEMENT_SHELL
*END
*KEYWORD
*MAT_RIGID
*MAT_SPRING_ELASTIC
*NODE
*PART
*SECTION_BEAM
*SECTION_DISCRETE
*SECTION_SHELL
*SET_NODE_LIST
*TITLE```

## Reduced Input

```*KEYWORD
*TITLE
Transient Response of a Cylindrical Disk Impacting a Flexible Surface
*CONTROL_IMPLICIT_DYNAMICS
1  0.500000  0.250000
*CONTROL_IMPLICIT_AUTO
1        11         5  1.00e-06  1.00e-04
*CONTROL_IMPLICIT_GENERAL
1  0.000100         0         0         0
*CONTROL_IMPLICIT_SOLVER
4         2         2         0         1         0         1         0
2
*CONTROL_IMPLICIT_SOLUTION
2        11        15    0.0010    0.0100  1.00e+10  0.900000  1.00e-10
2         1         1         2
0         1       0.0         1         2
*CONTROL_TERMINATION
0.1100
*DATABASE_GLSTAT
1.0000e-04         1
*DATABASE_MATSUM
1.0000e-04         1
*DATABASE_RCFORC
1.0000e-04         1
*DATABASE_NODOUT
1.0000e-04         1
*DATABASE_BINARY_D3PLOT
1.0000e-03
*DATABASE_HISTORY_NODE
166      1001
*PART
1         1         1
*SECTION_SHELL
1        13         0         4
1.0000    1.0000    1.0000    1.0000
*MAT_RIGID
1 3.9952831  3.00e+07    0.3000       0.0       0.0       0.0       0.0
1.0000       6.0       7.0
0.0       0.0       0.0       0.0       0.0       0.0
*PART
2         2         2
*SECTION_DISCRETE
2         0         0         0       0.0       0.0
0.0       0.0
*MAT_SPRING_ELASTIC
2 1973.9200
*PART
3         3         3
*SECTION_BEAM
3         7    1.0000    1.0000    0.0000
0.1000    0.1000
*MAT_RIGID
3  1.00e-07  3.00e+07    0.3000       0.0       0.0       0.0       0.0
1.0000       6.0       7.0
0.0       0.0       0.0       0.0       0.0       0.0
*ELEMENT_BEAM
1002       3    1003    1001
1003       3    1001    1004
*ELEMENT_DISCRETE
1001       2    1001    1002       0             1.0       0             0.0
*ELEMENT_SHELL
*NODE
*CONTACT_2D_AUTOMATIC_NODE_TO_SURFACE
-2        -1      0.10         0         0         0         0         0
0         0         0         0         0         0         0         0
2
*SET_NODE_LIST
1
1003      1001      1004
*SET_NODE_LIST
2
155       166       177