# Buckling of Beer Can — Welcome to LS-DYNA Examples

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Crushing of a beer can done using implicit analysis. Nonlinear Example 2 from A Roadmap to Linear an Nonlinear Implicit Analysis in LS-DYNA by George Laird and Satish Pathy.

## Keywords

```*BOUNDARY_SPC_NODE
*CONTACT_AUTOMATIC_SINGLE_SURFACE_MORTAR_ID
*CONTROL_ACCURACY
*CONTROL_IMPLICIT_AUTO
*CONTROL_IMPLICIT_DYNAMICS
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLUTION
*CONTROL_SHELL
*CONTROL_TERMINATION
*DATABASE_BINARY_D3PLOT
*DATABASE_EXTENT_BINARY
*DATABASE_GLSTAT
*DATABASE_SPCFORC
*DEFINE_CURVE_TITLE
*ELEMENT_SHELL
*END
*KEYWORD
*MAT_ELASTIC_TITLE
*NODE
*PART
*SECTION_SHELL_TITLE
*TITLE```

## Reduced Input

```*KEYWORD
*TITLE
Roadmap Linear and Nonlinear Analyses - Buckling of Beer Can
*CONTACT_AUTOMATIC_SINGLE_SURFACE_MORTAR_ID
1Single-Surface Mortar Contact (The New Explicit/Implicit Standard)

*CONTROL_ACCURACY
1
*CONTROL_IMPLICIT_AUTO
1                                    0.01
*CONTROL_IMPLICIT_DYNAMICS
1       0.6      0.38
*CONTROL_IMPLICIT_GENERAL
1      0.01
*CONTROL_IMPLICIT_SOLUTION

2

*CONTROL_SHELL
2                           -16
1

1
*CONTROL_TERMINATION
1.0
*DATABASE_GLSTAT
1.0E-4         3
*DATABASE_SPCFORC
1.0E-4         3
*DATABASE_BINARY_D3PLOT
1.0E-4

*DATABASE_EXTENT_BINARY
-3

*PART
1         1         1         0         0         0         0         0
*SECTION_SHELL_TITLE
Beer Can
1       -16    0.8333         3
0.002
*PART
2         2         1
*SECTION_SHELL_TITLE
Floor - Just for Contact (Rigid Wall Would Have Worked Also)
2       -16     0.833
0.01
*MAT_ELASTIC_TITLE
Aluminum
1   2.59E-4     1.0E7      0.33
*DEFINE_CURVE_TITLE
1
0.0                 0.0
1.0                 1.0