hypermesh 11.0 samcef tutorials
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HyperMesh 11.0 Samcef TutorialsTRANSCRIPT
HyperMesh 11.0 TutorialsSamcef Solver Interface
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HyperMesh 11.0 Tutorials - Samcef Solver Interface iAltair Engineering
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HyperMesh 11.0 Tutorials - Samcef Solver Interface
........................................................................................................................................... 1Samcef
........................................................................................................................................... 2HM-4850: Introduction to Samcef
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Samcef
The following Samcef tutorials are available:
HM-4850: Introduction to Samcef
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HM-4850: Introduction to Samcef
In this tutorial, you will learn how to:
Load the SAMCEF user profile
Retrieve the HyperMesh model files for this tutorial
Define the hypothesis on the elements
Create an isotropic material
Create a shell property
Assign the property and the material to the elements
Create loads and the load cases associated with them
Export the model in SAMCEF format
Step 1: Load the SAMCEF user profile
1. Launch HyperMesh or clear the current model.
2. Click on the User Profile icon .
The User Profile dialog displays.
3. Select Samcef from the list of user profiles.
4. Click OK.
Step 2: Retrieve the model file
1. Click on the File - Open Model icon .
2. Browse to the location <installation directory>\tutorials\hm\interfaces\samcef and
select the file Hook.hm.
3. Click Open to open the file.
4. In the toolbar, click on the Shaded Elements and Mesh Lines icon , if this view is not already set.
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Step 3: Check the hypothesis
1. Click Mesh > Assign > Element Types.
2. Click on the 2D & 3D radio button.
3. In this panel, you have the link between the keyword of HyperMesh (tria3, quad4, ...) and the hypothesisof SAMCEF. You can change the hypothesis for each element configuration and also update eachelement with a different hypothesis.
4. Click return to close the panel.
Step 4: Create the material
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1. Click the Material Collector toolbar icon .
2. Ensure the create subpanel is selected.
3. Click mat name = and enter steel.
4. Select a color for the material.
5. Click on the card image button and select ISOTROPIC.
You can create different types of elastic material (anisotropic, isotropic, or orthotropic).
6. Click create/edit.
The isotropic card image displays. If a material property in brackets does not have a value below it, it isturned off. To edit these material properties, click on the property in the brackets you wish to edit and anentry field appears below it. Click the entry field and enter a value.
7. In the YT field, enter 2.1e5.
8. In the NT field, enter 0.3.
9. In the M field, enter 7.9e-9.
10. Click return twice.
A new material named steel has been created. At any time, the card image for this material can bemodified using the card editor.
Step 5: Create the properties and assign it to the elements
1. Click on the Properties toolbar icon .
2. Ensure that the create subpanel is selected.
3. Click prop name = and enter shell.
4. Select a color for the property.
5. Click type = and select 2d.
6. Click card image = and select SHELLPHP.
7. Click material = and select Steel.
8. Click create/edit.
The SHELLPHP card image displays.
9. Activate the THICK button to display the field. In the THICK field, enter a value of 1.5.
10. Click return.
A new 2D property has been created.
11. In the Properties panel, click the assign subpanel.
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12. Click the yellow elems button and select by collector. Select the Shell collector.
13. Click property = and select the shell property.
14. Click assign.
The property is now assigned to the elements.
15. Repeat steps 2 - 8 to create another property called solid, the type as 3D and using the card imageSOLIDMAT. You can skip editing the card image for this property, because this 3D property is a dummyproperty defined to assign material and an ATT number to the elements.
16. Repeat steps 11 - 14 to assign the elements of the collector solid to the new 3D property called solid.
17. Check that the properties are correctly assigned to the elements by using the By Prop icon
. The elements should have the same color as the properties.
Step 6: Create the load collectors
1. Click on the Load Collectors icon .
2. Ensure that the create subpanel is selected.
3. Click loadcol name = and enter spc.
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4. Select a color for the load collector.
5. Click the creation method switch and select no card image.
6. Click create. The load collector is created.
7. Click loadcol name = and enter force.
8. Choose a color.
9. Click create.
10. Click return to close the panel.
Step 7: Create the constraints
1. In the Model Browser, expand the Load Collectors folder, right-click on spc and select Make Current.This sets the spc load collector as the current load collector.
2. Click BCs > Create > Constraints. Make sure the create subpanel is selected.
3. If necessary, use the switch to select nodes in the entity selector button. With the nodes button active,select the master nodes of the rigid elements, which are defined in the holes of the component solid.
4. Constrain dof1, dof2, dof3, dof4, dof5 and dof6 by checking all of their checkboxes. Set all of them to
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a value of 0.0
DOFs with a check will be constrained, while DOFs without a check will be free.
DOFs 1, 2 and 3 are x, y, and z translational degrees of freedom.
DOFs 4, 5 and 6 are x, y an z rotational degrees of freedom.
5. Click create to apply these constraints to the selected nodes.
6. Click return to close the panel.
Step 8: Create the forces
1. In the Model Browser, right-click on force and select Make Current. This sets the force load collectoras the current load collector.
2. Click BCs > Create > Forces. Make sure the create subpanel is selected.
3. If necessary, use the switch to select nodes in the entity selector button. With the nodes button active,select the master nodes of the rigid element.
4. Toggle from local system to global system.
5. Click the vector definition switch and select constant vector.
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6. Click magnitude = and enter 250.0.
7. Click the vector direction switch below magnitude = and select z-axis from the pop up menu.
8. Click create, and then click return.
Step 9: Create a SAMCEF database
1. Click Setup > Create > Load Steps.
2. Click name = and enter z-force.
3. Click loadcols and select force.
4. Click create and click return to close the panel.
Step 10: Export the file
1. Click the Export icon .
2. In the File field, enter the name of the file as hook.dat.
3. Make sure the template field is set to Samcef and click Export.