Week 4-1D Element Creation Challenge
AIM:-
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:-
Import the model by using geometry option in the form of IGES format.
Go to Geometry-> mid surface -> select components and extract.
The mid surface need to be moved using tool-> organise -> move.
MIDSURFACE:-
As the thickness of the given component, the mid surface is taken for the whole model.
Then we assign the material as steel & properties to the mid-surface component in the model browser.
MESHING:-
Give washer splits from Quick edit with 5mm thickness. Once materials & properties are assigned, we are meshing the component, by using auto mesh option in 2D & the target element length should be 5mm. Then adjust the nodes.
We create RBE2 and RBE3 elements using rigid and RBE3 in the 1D module for holes.
CONNECTIONS:-
Then we create cross sections for Rod, Bar & Beam
We create section for the rod in the form of box which has been given for the first case. Rods are used for tension and compression.
Cross-Section: BOX- Dimension a= 12 mm
Dimension b=10 mm
Thickness t= 0.75 mm
ROD:-
We create section for the beam in the form of I-section which has been given for the second case. Hyper beam is used to create beam in cross sections.
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
BEAM:-
BAR:-
We create cross sections for the bar in the form of Cross-section which has been given for the third case. Bars are used for symmetrical section and 6DOF is used.+
Cross-section: X section- Dimension DIM1= 5 mm
Thickness DIM2= 1.2 mm
Dimension DIM3= 10 mm
Thickness DIM4= 1.2mm
Once sections are created, we need to create a property for Rod, Beam, and Bar with property cards such as PROD, PBEAM, PBAR
BAR, ROD, AND BEAM
MASS:-
SPRING:-
FINAL IMAGE:
RESULTS:
Mid-surface is taken for the given geometry & material properties have been assigned. Later we meshed the components & Holes has been connected with RBE2 & RBE3 elements. Then we created CROD, CBEAM, and CBAR 1D elements with their DOF constrained according to the data that has been mentioned. Then we created cross sections for Rod, Beam, Bar & Property cards has been assigned for PROD, PBEAM, and PBAR. The mass has been applied with the magnitude of 10 on RBE2 & spring elements are joined.