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1 VCS IMPORT & EXPORT PROCEDURE S MANUAL VCS 6.0 The fastest way in Pre Design

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1

VCS IMPORT & EXPORT

PROCEDURES

MANUAL

VCS 6.0

The fastest way in Pre Design

VCS Manual Import & Export procedures

➢ Import procedures

o Import Objects from other Solution

o Import Data from FE Parts

o Import from STL

o Import from Nastran

o Import Cross Sections from HYPERBEAM

o Import Material

o Import Plot Data

➢ Export procedures

o Export Cross Section Geometry

o Export to STL

o Export Load Case

o Export Results to text files

o Chart Wizard export tools

o Cross Section Editor export tools

o Material Editor export tools

Import procedures

In VCS you can always import and use an Object (Cross Section, Beam, Rigid Body, Ruler, Characteristic, etc.) created previously in another VCS Solution. In order to import an object click on File and then on Import. From the drop down list select the Objects from Other Solution option.

Select a VCS Solution from which you wish to import objects and press Open.

An Objects Import window will appear on the screen. You will find in it a list of all objects created in the opened Solution. On the right side of the window you can find a read only properties window showing detailed information about a selected object.

You can select and import as many objects as you wish. After selecting them from the list, click on the Import Selected button. To import objects related with selected ones (e.g. Cross Sections assigned to selected Super Beams) choose Import Dependent Objects. You can also import the entire Solution by clicking on the Import All button.

The imported objects will be automatically added to the Solution Explorer tree.They will also appear in the 3D view window.

Import Objects from Other Solution

Import data from FE parts

VCS gives the possibility to import data from FE parts model.The “FE Part” import procedure will be described on an example of a mesh model of a Rocker Panel visible on the right hand side. The beam model consists of two FE elements.

VCS provides the possibility to set the required units when importing a FE model.After selecting the Import option a new window “Import and Units Conversion Utility” will appear on the screen.In this window you can set the required units of the imported model (length, mass, mass density, pressure / stress, strain).

To start the import procedure click on File and then on Import. From the drop down list choose the FE Part option. You can select import from Radioss or LS-Dyna.

You can also save your setting as default settings by pressing the “set as default” button in the Import and Units Conversion Utility window.

VCS provides the possibility to set the required units when importing a FE model.After selecting the Import option a new window “Import and Units Conversion Utility” will appear on the screen.In this window you can set the required units of the imported model (length, mass, mass density, pressure / stress, strain).

Once the units and scaling are defined you can select the Import Data file. After that click on the Import button.

When import is finished the message box will appear on the screen. Click OK.The Import procedure is now finished.

Note that VCS allows importing both 2D Array and 3D Array.

The 2D Array is used to define the Stress-Strain property of the Material.

VCS imports also characteristics based on original FE file of curves definitions that describe the Stress-Strain relation including Strain Rate Effect. The VCS counterpart of this material property is the 3D array.

Additionally VCS has importing possibility for material which stress strain relation was defined in simplified way by entering the values of first effective plastic strain[EPS1], second effective plastic strain [EPS2], etc. and corresponding yield stress values [ES1], [ES2].

Note that along with the geometry, all information about the Material of the FE elements as well shell thickness data will be automatically imported into VCS.Moreover the import tool creates simultaneously VCS Material basing on FE data.The Material Properties such as Material Constants, Stress –Strain - Characteristics and the Strain – Rate Effects parameters are visible in material definition.

All imported elements can be easily found in the Solution Explorer Window, in the Imported Objects folder. They will be also displayed in the 3D view window.

IMPORTANT NOTE:

The Material is imported only in case when it is assigned to the geometrical component in FE keyword file.

Due to number of formats of LS Dyna keyword file the properties of imported objects in VCS might have wrong values or the import of properties can be neglected.

Import from STL

In VCS the user has the possibility of multiple file import which means that number of elements can be selected during one import procedure.

Select as many STL elements as required and click on the Open button.

All imported elements will be automatically saved in the Solution Explorer tree under the Imported Objects ⇒ Parts folder.

They will be also visible in the Solution 3D view.

VCS offers the possibility to import a STL file format model.In order to start the import procedure click on File and then on Import. From a drop down list select the STL Model option.A new Import and Units Conversion Utility will appear on the screen. In this window the user can set the required units of the imported model (length, mass, mass density, pressure / stress, strain). Note that you can save your setting as default settings by pressing the “set as default” button in the Import and Units Conversion Utility window.

After defining the import units select the files you wish to import, as it is illustrated in the pictures below.

Import from NASTRAN

VCS provides the possibility to import objects (beams and cross sections) from NASTRAN.

In order to start the import procedure click on File and then on Import. From the import menu select the NASTRAN option, as it is illustrated in the picture on the left.

It is possible to import a 3D beam model, arbitrary cross sections and material. Additionally, a number of standard predefined cross sections from Nastran can be imported into a VCS Solution.

Below you can find the list of Cross Sections which can be imported into VCS as well as images of the original Nastran Cross Sections.

• BOX• TUBE• CHAN• CHAN1• CHAN2

As a result of the import procedure a Super Beam will be created in the VCS Solution.It will be automatically visualized in the 3D view, and it will be added to the Solution Explorer window, as it is shown in the picture below.

Additionally a Cross Section will be created, which also can be found in the Solution Explorer tree.The cross section will be named accordingly to its type specified in the Nastran file. An example of such Cross Section can be seen in the picture on the right.

Import Cross Sections from HYPERBEAM

In VCS the User will find the possibility of cross section geometry import.There is functionality of import from the HYPERBEAM software (CSV file format).This functionality is available in the “Import” menu.

To start the procedure of exporting cross sectional geometry you need to go first to 1D tab and choose “HYPER BEAM” tool.

Afterwards you should create a new section using the Hyper beam functionalities.

The import procedure shall be described on the example of A-pillar

Firstly the A pillar is viewed in the “HYPER MESH” software.This will be the base geometry for incoming actions.

A cross section needs to be created; therefore the section plane is used to enable edge selection. This plane should be placed in the location, from which we wish to extract a cross section.In the picture on the right the A-Pillar is divided by section plane to extract section lines for each component of A Pillar.

Change the display view to make selection of geometry more convenient and select lines by path – as shown in the picture below. Select lines on each component. When all lines are selected press the “Create” button.

After selecting the required “csv” file, all included cross sections will be imported into VCS. The Cross Sections are going to be added to the Solution Explorer tree.

In the pictures on the right you can see an example of a cross section created in HYPERBEAM,and its counterpart automatically created in VCS as a result of the import procedure The geometry has been automatically created and can be viewed in the Cross Section Editor.

All elements are also automatically added to the Solution Explorer tree. Please note that the imported cross section is already divided into segments, plates and points etc.

The user interface automatically switches to 2D Hyper beam View. You will be able to see the shell cross section composed of number of points connected by lines. The detailed information are available in results window on the right hand side of the screen and editing options form the context menu after selection of the cross section.Now go to File menu and export all shell sections to CSV file. The steps for data preparation are now finished, and you can switch to the VCS software

VCS is enriched with the functionality of import from the HYPERBEAM software. We can now import a cross section which was prior saved in HYPERBEAM in CSV file format.

After opening the VCS “File” menu select “Import” and then “Import cross section from HYPERBEAM csv”

The newly imported, crude geometry needs to be modified to fulfill requirements of macro element methodology!Each component of A Pillar should consist of 1 - Segment. All unnecessary Points should be deleted from the Solution.Remember that you can change the properties of each element in the Property window on the right hand side of the screen.You can also modify cross section geometry, for instance by dividing single plate element into two plates.

Please refer to the cross section example given in the picture below.In consequence of the modification process instead of large number of initial segments only 3 new segments were created.

When the geometry is ready I need to add the connections between plates. Select master plate and slave plate for each pair of plates. It is important to underline that before cross section calculations can be conducted, material needs to be assign to each segment

Import Material

VCS provides the possibility to import material directly from CrashCad, ABAQUS or LS-DYNA.

In order to import a material click on File and then on Import. From drop down list select proper option (Material from... CrashCad, ABAQUS or LS-DYNA), as it is illustrated in the picture on the left.

In “Import and Units Conversion” Utility window set proper units and Once the units and select file you wish to import. After that click on the Import button. Imported Materials will appear in the Solution Explorer tree.

Import Plot Data

After successful importing data file, go to Chart Wizard. The imported curve will be displayed there.

In VCS you can import Plot Data from LS-PrePost and HyperWorks directlyto Chart Wizard.

Start by preparing a curve file in the appropriate program (LS-PrePost /HyperWorks).

The procedure will be shown on the example of LS-PrePost data. Import from HyperWorks is analogous.

In order to start the import procedure click on File and then on Import. Inthis case from import menu select X-Y Plot Data LS-PrePost option, as it is illustrated in the picture on the right.

Select data file from which you wish to import and press Open.

When import is finished the message box will appear on the screen. Click OK.The Import procedure is now finished.

Export procedures

In Visual Crash Studio the User has the possibility to export the geometry of any Cross Section created in the Solution.Cross Sections can be exported in dxf. format, readable for CAD programs.

The export procedure is very simple. In order to export a Cross Section the User needs simply to click on the “Export to DXF” icon available in the main toolbar of the Cross Section Editor (see picture on the right).

You can save the exported geometry in any file or location you wish.The result of the export procedure can be seen in the picture below. Please note that the dxf. format includes information about the thickness of each Plate of the Cross Section, however it does not contain information about connections defined between Segments.

Export Cross Section Geometry (in DXF file format)

Export to STL

Any structure created in VCS 3D environment can be easily exported as a STL model.

In order to export the 3D geometry click on File and then on Export. Choose the STL Model option.

You can save the export STL model in any location, and name it as you wish, as it is illustrated in the picture below.

The result of the export procedure can be seen in the picture below.

Export Nodes Position to Text

VCS enables the user to easily export position of selected nodes to text files. In order to start the export procedure select Nodes whose positions are to be exported.After that click on File and then on Export. In the export menu select Nodes Position to Text, as it is illustrated in the pictures above.After saving data to a text file in the selected location, you can open it as shown below.

Export Load Case

In Visual Crash Studio all information about the model and the results of calculation procedure can be exported and saved.

In order to save a load case and results you need to set the Memory Processing field of the Solution’s properties window to False.

After finishing the calculations, click on Edit and then on Save Solution as Load Case.In the New Load Case window you can enter the name under which the solution will be saved

The new Load Case files will be automatically saved in the location of the “base” VCS file.In result of the export procedure you will receive folders of data, containing all information about the model and load case. Results will be gathered in an individual folder, as illustrated in the picture above.

VCS gives possibility to compare results ofsaved load cases and current solution in easy way. In this case open Chart Wizard. Select proper Load Case on the right side of Chart Wizard window and then select data to show. After that curve will be displayed.

Export Results to text files

In VCS the standard results of a simulation are automatically stored on the HDD in binary form.The newest version of VCS is equipped with an export tool, which enables the user to easily export all results of the simulation in text files. The “Export Results to text files” tool is presented basing on the example shown below.

Select the Solution in the Explorer window and right-click to expand object sensitive menu. Select “Export Results to text files”.

Note: The Solution needs to be calculated before exporting results.

The main folder (in this case named 2019-7-1 14-49-23 Solution) contains results divided into groups. Group Folders: Boxes, Cones, Protractors etc. contain result text files corresponding to each element in the solution. The result *.txt files are named after GUID of the elements.

The number at the end of each file corresponds to output data in the level of Chart Wizard i.e. For Nodes: Displacements, Forces, Moments, Accelerations, etc. For Super Beam Elements: Bending Moment at Start Node, Bending Moment at End Node, Axial Force, etc.The content of example data is shown in the picture below.

The browser window will appear on the screen to select path for exported data. The folder with results will be created in specified location. The general folder name consists of precise date of results export and the name of solution (The most top object in the Solution Explorer window).

Chart Wizard export tools

Export – export selected series in text file format

Export tool enables saving chart data as a text file. The operation is helpful for external post processing purposes.

After selecting the “Export” icon in the main toolbar a new “Export” window will be displayed on the screen.

In this window the user can select the series for export.

Afterwards the selected results can be saved .

Additionally the user has the possibility to define the output step (at the bottom of the “Export” window).By default it is set to the recommended value.

Export to Excel – export selected series in *.xls file format

Similarly any curve of the Chart Wizard can be saved as an Excel file.

After selecting the “Export to Excel” icon in the main toolbar a new “Export” window will be displayed on the screen.

In this window the user can select the series for export.

Afterwards the selected results can be saved and later opened in the Excel software (as presented in the picture on the right).

VCS gives the possibility to export data from Chart Wizard.

Cross Section Editor export tools

Export – export selected series in text file format

Export tool enables saving Cross Section response data (Axial Crushing, Bending, Torsion, Lateral Crushing, Denting) as a text file. The operation is helpful for external post processing purposes.

After selecting the “Export” icon in the main toolbar a new “Export” window will be displayed on the screen.

In this window the user can select the series for export.

Afterwards the selected results can be saved .

Additionally the user has the possibility to define the output step (at the bottom of the “Export” window).By default it is set to the recommended value.

Export to Excel – export selected series in *.xls file format

Similarly any curve of the Cross Section can be saved as an Excel file.

After selecting the “Export to Excel” icon in the main toolbar a new “Export” window will be displayed on the screen.

In this window the user can select the series for export.

Afterwards the selected results can be saved and later opened in the Excel software (as presented in the picture on the right).

VCS gives the possibility to export results of calculations data from Cross Section Editor.

Material Editor export tools

Export – export selected series in text file format

Export tool enables saving Material data (Stress-Strain and Rate Effect) as a text file. The operation is helpful for external post processing purposes.

After selecting the “Export” icon in the main toolbar a new “Export” window will be displayed on the screen.

In this window the user can select the series for export.

Afterwards the selected results can be saved .

Additionally the user has the possibility to define the output step (at the bottom of the “Export” window).By default it is set to the recommended value.

Export to Excel – export selected series in *.xls file format

Similarly any curve of the Material can be saved as an Excel file.

After selecting the “Export to Excel” icon in the main toolbar a new “Export” window will be displayed on the screen.

In this window the user can select the series for export.

Afterwards the selected results can be saved and later opened in the Excel software (as presented in the picture on the right).

VCS gives the possibility to export stress-strain relation and dynamic response of the defined Material from Material Editor.