Week 4-1D Element Creation Challenge

OBJECTIVE: To Mesh the Given component with the Size of 5 Units. Create 1D elements on the following component with given cross-section and DOF

a. Rod element:- Translational DOF should be Constrained with RBE2 link

Cross-Section: BOX- Dimension a= 12 mm

dimension b=10 mm

Thickness t= 0.75 mm

b. Beam element:- All DOF should be constrained with RBE3 link

Cross-Section: I Section- Dimension a= 8 mm

Dimension b= 10 mm

Dimension c= 8.5 mm

Thickness t1= 0.75 mm

Thickness t2= .6 mm

Thickness t3= .6 mm

c. Bar element:- Constrain only x and y DOFs With RBE3 link

Cross-section: X section- Dimension DIM1= 5 mm

Thickness DIM2= 1.2 mm

Dimension DIM3= 10 mm

Thickness DIM4= 1.2mm

Procedure:
1. Import the geometry into the workspace using the "Import Geometry" option from the toolbar.

2. Select "Geometry" from the main menu page and choose the "mid surface" option.

3. Extract the mid surface by auto midsurface>auto extraction>surfs>extract. The type of extraction affects the meshing quality.

4. Hide the parent geometry and leave the extracted mid surface in the workspace.

5. For all the holes in the geometry, make a washer split by using the "washer split" command in the "quick edit" optionsSelect

6. 2D from the main menu page and proceed with the "auto mesh" option to mesh the surface with 5 units.

7. Now assign a material card and a property card to these brackets and give a thickness of 2.5mm.

8. Using 2D detailed element representation, the meshed model can be seen with a thickness.

9. Select Hyperbeam>Standard section>section type>create and create the specified shapes.

10. Create a property card for each of these sections separately.

11. Switch to 1D on the main menu page and choose the rigid option to make an RBE2 link and the RBE3 option for RBE3 links.

12. Connections are made as per given DOF's and the type of link[CROD, CBEAM, CBAR] at specified locations.

13. Masses option is used to assign mass at the specified nodes.

14. The spring option is used for creating a spring connection[CELAS1].

Final Part:-