Interface LIMIT SolidWorks - CAE Simulation Solutions

April 2015www.cae-sim-sol.com

Interface LIMIT – SolidWorks

Documentation

Seite 2Interface LIMIT - SolidWorkswww.cae-sim-sol.com

Supported SolidWorks Versions in Release Package

SWX 2014

SWX 2015

If you need a different version please contact LIMIT support ([email protected])

The following slides contain SWX-specific steps to do a LIMIT run using SWX FE results


mailto:[email protected]






Default settings in SolidWorks:

Click Simulation/Options in the simulation module

Click Standard options/resultsand choose‘keep temporary data base files‘

To run a LIMIT-Job with SWX-Resultsthese settings are necessary and all the files generated by SolidWorks after the SWX-FEM-run have to be placed in the LIMIT work directory. It is recommended to use the SWX work directory also as LIMIT work directory.



Exporting the mesh to a file LIMIT can read

An Abaqus .inp-file has to be exported in

the Simulation Module of SolidWorks.

Click ”Simulation/Export…‛ in the drop

down menu.

Then choose *.inp extension in the

opening window,

put in a filename

and klick save.



Importing the .inp-file into LIMIT-CAE:

Click File / Import / FE Model: solidworks

The before generated Abaqus .inp-file can

be imported by LIMIT.



Load definition:

In SWX for each load case a separate

SWX-FEM-run have to be done.

In LIMIT load manager the individual load

case defined

First create a new ‛FE Result“

Step-Number is for SWX-results always ‘1’

Choose the appropriate .CWR-file to use

the SWX results

For more information for superpose the

individual load case see the ‘LIMIT-GUI-

Introduction’



Running a LIMIT job based on a SolidWorkssimulation:

Create a new Job

In the field ‘Geometry File‘ select the .linp-

file which was generated automatically

after importing the .inp-file

In the field ‚‘Results File‘ select any load

case .CWR-file



Specification of the interface

Maximum nodenumber respectively elementnumber :

Windows 64 bit (x64): 20000000

Maximum number of nodes :

Windows 64 bit (x64): 3000000

Maximum number of elements :

Windows 64 bit (x64): 2000000

These LIMITS can be changed by the user. See document LIMIT_2015, section: 14.1 Redimensioning of Arrays



Following elements can be analyzed:

Solids :

quadratic 3D-Solids (10 nodes tetrahedrons)

Shells:

quadratic shells (6 nodes triangles)



Solid assessment: Goal of a LIMIT FKM proof of strength: Assessment of surface stresses (2D-tensors) Popular method and conservative

Free surfaces: Are necessary for the consideration of stress gradients normal to the surface Are identified by the software LIMIT Can be generated by covering the solids with 2D-elements (skin) in the preprocessor.

2D-skin elements can be assessed as well But without supporting effect => conservative This leads to considerable less data

Supporting effect is only possible with solids! Results of a 3D analysis with good element quality and fine meshing are more

precise than results of 2D-skin elements.



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Interface LIMIT SolidWorks - CAE Simulation Solutions