Challenge

Week 4- Challenge

Objective:

Create 1D elements on the following component with given cross-section and DOFs. Details of 1D Elements mentioned under Task.

1.Rod element: - with only translational DOF and RBE2 link

Cross-Section: BOX- Dimension a= 12 mm, dimension b=10 mm, Thickness t= 0.75 mm

2.Beam element: - with all DOF and 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

3.Bar element: - with only x and y DOFs With RBE3 link

Cross-section: CROSS section- Dimension DIM1= 5 mm, DIM2= 1.2 mm, Dimension DIM3= 10 mm, Thickness DIM4= 1.2mm

4. Apply the mass of magnitude 10 with RBE2 link.

5.Join the two components with Spring elements.

CAD Model Image:

Procedure:

Reviewed Midsurface options and checked best option to create Midsurface. Review has been shown under Image below.

It was observed that the Midsurface generated by the skin offset option shows better geometry than other options. So, it was decided to use this option for Midsurface.
Created Two new components named as “MIDDLE_SURFACE_1/2” and created midsurface for each bracket respectively.

Creating Material by R-click in Model Panel and selecting Create>Material. Considering Material as Steel and Activated all its Properties.

Creating Property for Both Bracket Individually. R-click in Model Panel and select Create>Property.

Auto Mesh the given bracket, considered element size as 5 mm. Select 2D>Panel>Automesh and select mesh type as mixed. Before Meshing create Washer Split of 5mm offset value for all holes.

After creating Mesh 1D Elements are created starting with A- region where DOFs are Transitional only with RBE2 Element link.

Next to which RBE3 element link was created on B- Region with All DOFs available with it.

Similarly, C-region RBE3 element link was created and with DOFs for X and Y Axis only (Considering both Translational and Rotational).

RBE2 Link was created on D and F Region and Mass of 10 was subjected on this node. So, the RBE 2 link is distributed with the mass of 10 on its elements.

Creating a RBE2 element on another bracket, Spring element is created between two brackets through nodes as shown below.

Now at point A Rod Element is Created. To create rod element, we need to create various cross section mentioned in objectives.

So, to create sections we use command Hyperbeam>Standard Section>select section library>Section type>create. After we hit create new window gets open of hyperbeam and Dimensions are edited as per given details.
BOX, I, and Cross Section was created as per given dimension.

Creating new component and Property for Rod Element. Assigned Material and Properties to both i.e. beam section and material.

For Rod Element we selected Rod from 1D Panel, selected 2 Nodes specified element type as CROD and clicked MMB.

For Beam Element we selected Bars from 1D Panel, selected 2 Nodes set its orientation specified element type as CBEAM and clicked MMB.

Similarly, For Bar Element we selected Bars from 1D Panel, selected 2 Nodes set its orientation specified element type as CBAR and clicked MMB.

Final Model Image:

Conclusion:

Successfully completed the task mentioned and learned about Mid surfacing and 1D Elements, procedure to assign materials and beam cross sections.

Ship work like this
in your own course.