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Examples Manual (Kennedy)

The examples in this section are from the 'Introductory Examples Manual for LS-DYNA Users'. The manual was published by James M. Kennedy and LSTC in June 2013. The copyright is with LSTC.

Manual (pdf)

Overview

The loadcases are described in detail in the manual included in the download package.

1. Skew Plate with Normal Pressure (thin shell mesh)
2. Skew Plate with Normal Pressure (thick shell mesh)
3. Elliptical Thick Plate under Normal Pressure (coarse mesh)
4. Elliptical Thick Plate under Normal Pressure (fine mesh)
5. Snap-Back under Displacement Control
6. Straight Cantilever Beam with Axial End Point Load
7. Lee's Frame buckling Problem
8. Pin-Ended Double Cross: In-Plane Vibration
9. Simply Supported Thin Annular Plate (coarse mesh)
10. Simply Supported Thin Annular Plate (fine mesh)
11. Transient Response to a Constant Force
12. Simply Supported Square Plate: Out-of-Plane Vibration (solid mesh)
13. Simply Supported Square Plate: Out-of-Plane Vibration (thick shell mesh)
14. Simply Supported Square Plate: Transient Forced Vibration (solid mesh)
15. Simply Supported Square Plate: Transient Forced Vibration (thick shell mesh)
16. Transient Response of a Cylindrical Disk Impacting a Deformable Surface
17. Natural Frequency of a Linear Spring-Mass System
18. Natural Frequency of a Nonlinear Spring-Mass System
19. Buckling of a Thin Walled Cylinder Under Compression
20. Membrane with a Hot Spot
21. 1D Heat Transfer with Radiation
22. 1D Transient Heat Transfer in a Bar
23. 2D Heat Transfer with Convection
24. 3D Thermal Load
25. Cooling of a Billet via Radiation
26. Pipe Whip
27. Copper Bar Impacting a Rigid Wall

Keywords

Specific keywords used in the different example input files:

1. Skew Plate with Normal Pressure (thin shell mesh)

*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLUTION
*LOAD_SEGMENT

2. Skew Plate with Normal Pressure (thick shell mesh)

*DATABASE_HISTORY_TSHELL
*ELEMENT_TSHELL

3. Elliptical Thick Plate under Normal Pressure (coarse mesh)
4. Elliptical Thick Plate under Normal Pressure (fine mesh)

*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLUTION
*CONTROL_IMPLICIT_SOLVER
*LOAD_SEGMENT

5. Snap-Back under Displacement Control

*CONTROL_IMPLICIT_AUTO
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLUTION
*DATABASE_NODAL_FORCE_GROUP
*MAT_ELASTIC_SPRING_DISCRETE_BEAM
*LOAD_NODE_POINT

6. Straight Cantilever Beam with Axial End Point Load

*CONTROL_IMPLICIT_AUTO
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLVER
*CONTROL_IMPLICIT_SOLUTION
*DATABASE_NODAL_FORCE_GROUP
*LOAD_NODE_POINT

7. Lee's Frame buckling Problem

*CONTROL_IMPLICIT_AUTO
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLUTION
*DATABASE_NODAL_FORCE_GROUP
*LOAD_NODE_POINT


8. Pin-Ended Double Cross: In-Plane Vibration

*CONTROL_IMPLICIT_AUTO
*CONTROL_IMPLICIT_EIGENVALUE
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLVER

9. Simply Supported Thin Annular Plate (coarse mesh)
10. Simply Supported Thin Annular Plate (fine mesh)

*CONTROL_IMPLICIT_EIGENVALUE
*CONTROL_IMPLICIT_GENERAL

11. Transient Response to a Constant Force

*CONTROL_IMPLICIT_DYNAMICS
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLVER
*CONTROL_IMPLICIT_SOLUTION
*ELEMENT_MASS
*LOAD_NODE_SET

12. Simply Supported Square Plate: Out-of-Plane Vibration (solid mesh)

*CONTROL_IMPLICIT_EIGENVALUE
*CONTROL_IMPLICIT_GENERAL

13. Simply Supported Square Plate: Out-of-Plane Vibration (thick shell mesh)
14. Simply Supported Square Plate: Transient Forced Vibration (solid mesh)
15. Simply Supported Square Plate: Transient Forced Vibration (thick shell mesh)

*CONTROL_IMPLICIT_AUTO
*CONTROL_IMPLICIT_DYNAMICS
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLVER
*CONTROL_IMPLICIT_SOLUTION
*DATABASE_NODAL_FORCE_GROUP
*DAMPING_GLOBAL

16. Transient Response of a Cylindrical Disk Impacting a Deformable Surface

*CONTROL_IMPLICIT_AUTO
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLVER
*CONTROL_IMPLICIT_SOLUTION
*MAT_SPRING_ELASTIC
*ELEMENT_DISCRETE

17. Natural Frequency of a Linear Spring-Mass System

*MAT_SPRING_ELASTIC
*ELEMENT_DISCRETE
*ELEMENT_MASS

18. Natural Frequency of a Nonlinear Spring-Mass System 

*MAT_SPRING_NONLINEAR_ELASTIC
*ELEMENT_DISCRETE
*ELEMENT_MASS

19. Buckling of a Thin Walled Cylinder Under Compression

*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLUTION
*CONTROL_IMPLICIT_BUCKLE
*LOAD_NODE_SET

20. Membrane with a Hot Spot 

*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLUTION
*MAT_ELASTIC_PLASTIC_THERMAL
*LOAD_THERMAL_LOAD_CURVE

21. 1D Heat Transfer with Radiation 

*CONTROL_THERMAL_SOLVER
*CONTROL_THERMAL_NONLINEAR
*CONTROL_THERMAL_TIMESTEP
*DATABASE_TPRINT
*MAT_THERMAL_ISOTROPIC
*BOUNDARY_TEMPERATURE_SET
*BOUNDARY_RADIATION_SET
*INITIAL_TEMPERATURE_SET

22. 1D Transient Heat Transfer in a Bar 

*CONTROL_SOLUTION
*CONTROL_THERMAL_SOLVER
*CONTROL_THERMAL_TIMESTEP
*DATABASE_TPRINT
*MAT_THERMAL_ISOTROPIC
*BOUNDARY_TEMPERATURE_SET
*INITIAL_TEMPERATURE_SET

23. 2D Heat Transfer with Convection

*CONTROL_SOLUTION
*CONTROL_THERMAL_SOLVER
*DATABASE_TPRINT
*MAT_THERMAL_ISOTROPIC
*BOUNDARY_CONVECTION_SET
*BOUNDARY_TEMPERATURE_SET
*INITIAL_TEMPERATURE_SET

24. 3D Thermal Load

*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLUTION
*MAT_ELASTIC_PLASTIC_THERMAL
*LOAD_THERMAL_VARIABLE_NODE

25. Cooling of a Billet via Radiation 

*CONTROL_SOLUTION
*CONTROL_THERMAL_SOLVER
*CONTROL_THERMAL_NONLINEAR
*CONTROL_THERMAL_TIMESTEP
*DATABASE_TPRINT
*MAT_THERMAL_ISOTROPIC
*BOUNDARY_RADIATION_SET
*INITIAL_TEMPERATURE_SET

26. Pipe Whip

*MAT_PLASTIC_KINEMATIC
*INITIAL_VELOCITY_GENERATION
*CONTACT_AUTOMATIC_SURFACE_TO_SURFACE_TITLE

27. Copper Bar Impacting a Rigid Wall

*CONTROL_IMPLICIT_DYNAMICS
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_SOLVER
*CONTROL_IMPLICIT_SOLUTION
*MAT_PLASTIC_KINEMATIC
*RIGIDWALL_PLANAR
*INITIAL_VELOCITY_GENERATION