interface limit solidworks - cae simulation solutions
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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
Interface LIMIT – SolidWorks
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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.
Interface LIMIT – SolidWorks
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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.
Interface LIMIT – SolidWorks
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Importing the .inp-file into LIMIT-CAE:
Click File / Import / FE Model: solidworks
The before generated Abaqus .inp-file can
be imported by LIMIT.
Interface LIMIT – SolidWorks
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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’
Interface LIMIT – SolidWorks
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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
Interface LIMIT – SolidWorks
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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
Interface LIMIT – SolidWorks
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Following elements can be analyzed:
Solids :
quadratic 3D-Solids (10 nodes tetrahedrons)
Shells:
quadratic shells (6 nodes triangles)
Interface LIMIT – SolidWorks
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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.
Interface LIMIT – SolidWorks
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Interface LIMIT – SolidWorks