Challenge

Week 4-1D Element Creation Challenge

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

d. & e. Apply the mass of magnitude 10 with the RBE2 link

f. Join the two components with Spring elements

Ans:

Firstly import the IGES model into the window panel and then find out the thickness of both the brackets.

Bracket 1 =5mm

Bracket 2=5mm

Now extract the mid surface of the 1st bracket and rename it as bracket_1 and create the new component and name it as bracket_2

The creation of a new component is because the extracting of the second bracket is going to merge on the 1st mid surface itself.
After the creation of 2nd component now extract the mid surface of the 2nd bracket and move that mid surface into the bracket_2

Tool>organise>see which component is listed>surface>move.

Now insert the material in the model panel and rename it as steel
And also create the two properties name it as Bracket-1 and bracket_2 and assign the material as steel, thickness as 5mm
Now assign the mid surface brackets properties
After creating all this, add a washer split with an offset of 5mm for every hole in the model

Now auto mesh the displayed component
construct the Rbe2 and rbe3 elements as per mentioned in the question and list the dof according to the requirement.
now create a 1d bar, rod, and beam to the corresponding element as they mentioned in the question.
In the question they mention that for a, b, and c hole there is a different cross-section
To create the cross-section for the holes there is a command called hyberbeam where we can select the type of cross and can give the dimension as per the user require

After creating the cross-sections, import the other 3 properties name them as rod, bar and beam, and assign the card image and beam section as respectively

Once all this done go to the 1d panel and assign the property for rod, bar and beam and update it

Ship work like this
in your own course.