Defining solution options and output requests for LS-DYNA

You can use the Controls and Database modeling objects to define solution control options and output parameters for an LS-DYNA solution.

Defining solution control options with the Controls modeling object

You can use the Controls type of modeling object to specify parameters for the *CONTROL keyword. You can use the Controls dialog box to specify options for the following LS-DYNA keyword control cards:

Tab in the Controls dialog box	LS-DYNA keyword	Description
Bulk Viscosity	*CONTROL_BULK_VISCOSITY	Changes the default values for bulk viscosity coefficients. This can be useful when you model shock wave propagation.
Contact	*CONTROL_CONTACT	Changes the default values for contact analysis options.
Energy	*CONTROL_ENERGY	Controls the computation of energy dissipation.
Hourglass	*CONTROL_HOURGLASS	Controls the hourglass formulation.
MPP_DECOMPOSITION	*CONTROL_MPP_DECOMPOSITION_SHOW	Displays the final decomposition.
*CONTROL_MPP_DECOMPOSITION_TRANSFORMATION	Controls he type of transformation to apply to the decomposition during the solution.
Output	*CONTROL_OUTPUT	Controls a variety of output parameters, such as an option to update reference node coordinates for beam elements, and the option to specify the maximum number of times a given error or warning message prints to the output file.
Shell	*CONTROL_SHELL	Controls options that control the response of shell elements during an analysis.
Solid	*CONTROL_SOLID	Controls the response of solid elements during an analysis.
Termination	*CONTROL_TERMINATION	Controls the termination time of a time step.

After you create a Controls type of modeling object, you can then use the *CONTROL option in the Solution dialog box to include that modeling object in a specific solution.

Specifying output parameters with the Database modeling object

You can use the Database type of modeling object to create output files that contain results for an LS-DYNA solution. You can use the Database dialog box to define options for the following *DATABASE keywords:

Tab in the Controls dialog box	LS-DYNA keyword	Description
Binary	*DATABASE_BINARY	Controls whether LS-DYNA generates the D3PLOT and D3THDT binary output files.
General Option	*DATABASE_BNDOUT	Controls whether LS-DYNA generates the boundary condition forces and energy data ASCII output file.
General Option	*DATABASE_ELOUT	Controls whether LS-DYNA generates the element output data ASCII output file.
Extent Binary	*DATABASE_EXTENT_BINARY	Requests the output of the binary database.
General Option	*DATABASE_GLSTAT	Controls whether LS-DYNA generates the global data ASCII output file.
History	*DATABASE_HISTORY	Controls the nodes and elements that the software outputs to the binary history file (D3THDT), the various ASCII files (NODOUT, ELOUT, SPHOUT).
General Option	*DATABASE_MATSUM	Controls whether LS-DYNA generates the material energies data ASCII output file.
General Option	*DATABASE_NODFOR	Controls whether LS-DYNA generates the nodal force data ASCII output file.
General Option	*DATABASE_NODOUT	Controls whether LS-DYNA generates the nodal point data ASCII output file.
General Option	*DATABASE_RBDOUT	Controls whether LS-DYNA generates the rigid body data ASCII output file.
General Option	*DATABASE_RCFORC	Controls whether LS-DYNA generates the resultant interference forces data ASCII output file.
General Option	*DATABASE_RWFORC	Controls whether LS-DYNA generates the wall force data ASCII output file.
General Option	*DATABASE_SLEOUT	Controls whether LS-DYNA generates the sliding interface energy data ASCII output file.

After you create a Database type of modeling object, you can then use the *Output Requests (DATABASE) option in the Solution dialog box to include that modeling object in a specific solution.

Where do I find it?

Application	Pre/Post
Prerequisite	An active FEM or Simulation with LS-DYNA as the specified solver
Command Finder	Modeling Objects
Menu	Insert→Modeling Objects

Learn more

LS-DYNA environment

Defining XY data for LS-DYNA solutions

Defining global damping for LS-DYNA solutions

Customizing LS-DYNA input files with user defined text

Previewing LS-DYNA solver syntax

Look up more details

LS-DYNA boundary conditions

Controlling ID values assigned during export (LS-DYNA)

LS-DYNA keywords supported for import and export

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Defining solution options and output requests for LS-DYNA, Simcenter 3D 2021.1 Series

© 2020 Siemens

window.mainLanguage="en_US"

window.delivId=""

window.projectId=""

MathJax.Hub.Config({ TeX: { extensions: ["autoload-all.js"] }, tex2jax: { displayMath: [ ] }, "SVG": { scale: 125 } });