Week 4-1D Element Creation Challenge

AIM:

To Mesh the Given component with the Size of 5 Units & to Create ID elements on the following component with give cross-section and DOF

given data:

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

procedure:

1. MID SURFACE:

• Auto mid surface has been used to extract the midsurface for this simple bracket.
• Components has been created and assigned to the particular mid surfaces.

2. ASSIGN MATERIAL:

• Create material.
• Here I have created a material and assigned to steel.

3. ASSIGN PROPERTY:

• Create property
• .Enter Thickness value & element type.
• Also assign this created property to the particular component & material.

4. WASHER SPLIT:

• Washer spilt is used to capture the mesh near the holes properly
• The washer split offset value is given to 5 units in this project

5. 2D MESH:

For this project auto mesh is been performed for the element target length of 5 units.

6.1D ELEMENTS

• Some 1D elements used in this projects are

1. PBAR
2. PROD
3. PBEAM
4. RBE2
5. RBE3

• As per the given details have deplayed the 10 elements To deploy bar, rod, beam elements hyperbeam has been used.

•Where hyperbeam is used to create a cross sections.

HYPERBEAM

From the given data

a. rod element,

b. bearn element,

c. bar element

we will be creating a cross sections using hyperbeam

a.Rod.element- (cross section - box):

The given cross section details for rod elements are,

Cross-Section BOX

• Dimension a= 12 mm, b =r10 mm

• Thickness t= 0.75 mm

To create this cross section Go to 10-> Hyperbeam- Create--> standard section Hypermesh--> Thin walled box

The standard cross section shape will be created and enter the given dimensions doto as shown in the below

b.BEAM ELEMENT (I-Section);

The given cross section details for beam elements are Cross-Section Section

• Dimension: a 8 mm, b=10 mm, c= 8.5 mm
• Thickness 11 0.75 mm, 12.6 m, 136 mm

To create this cross section Go to -> ID-> Hyperbeam-Create-> standard section-->Hypermesh-->I-section

The standard cross section shope will be created and enter the given dimensions data as shown

in the below figure

C.BARELEMENT (X-SECTION):

The given cross section details for beam elements are, Cross-section: X section

• Dimension DIMI= 5 mm
• Thickness DIM2= 12 mm.
• Dimension DIM310 mm
• Thickness DIM4-12mm

To create this cross section Go to ID-> Hyperbeam--> Create--> standard section Optistruct -->CROSS

The standard cross section shope will be created and enter the given dimensions data as shown

APPROACH:

a. Approach for Rod element

• Created ReE2 cluster element for hole(a) by constraining translational as per input data
• Created CROO element by connecting hole (a)
• CROD- Thin walled cross section as per input

b. Approach for beam element:

• Created RBE3 chuster element for hole by constraining all daf os por input data
• Created CBEAM element by connecting hole (b).
• Cbeam-L-cross section as per input

c.Approach for BAR element

• Created RBE3 cluster element for hole (c) by constraining only & dot as per input data
• Created CBAR element by connecting hole (b)
• CBAR X-section os per input

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

• Created RBE2 cluster element for hole (d& e) as per input data•
• Cmass Applied a mass of magnitude 10

f. Join the two components with Spring elements

• spring elements are created at the four corners of the brackets to join the component.
• CElas