plate modelling and analysis
DESCRIPTION
modelling and analysis of square plate using hypermeshTRANSCRIPT
ID :2014PDE5064
MODELING AND ANALYSIS
OBJECTIVE :
Find the maximum deflection and the maximum stress for the plate
subjected to uniform pressure on the plane surface.
PROBLEM STATEMENT :
A square plate having dimension of the 500 mm x 500 mm is
subjected to pressure of 2 Mpa on one of it’s plane and it’s 4
edge are simply supported.
Find the stresses and deflection for
(1) without any hole at centre
(2) with circular hole with 200 mm diameter at centre
(3) with square hole having dimension of the
500 mm x 500 mm
PROCEDURE
1 . PROCEDURE FOR THE SQUARE PLATE:
Creating a square plate using hypermesh
1. Set user profile as radioss or as optistruct
2. Create nodes
3. Produce surface of 500 x 500
Creating mesh
- Select 2D/automesh
- Select surface and provide size of the mesh then click create
Create materials
- Click on materials icon
- Provide name /colour
- Type – isotropic
- Card image – MAT1
- Then create edit
Properties
- Create edit – provide thickness of the plate
- Two times return
Create component
Define load collector
- Pressure as a first load collector
- Spc as second load collector
- Right click on the load collector pressure and select make
current
- Then BCs create pressure
- As a same way right click on the load collector spc and select
make current
- Create constraint
Create load step
- Select SPC as spc and FORCE as pressure
- After creating a load step select analysis/optistruct
- Save file
- Select export option as ALL , run option as ANALYSIS , memory
option as memory default
- And click on optistruct
RESULT :
Result view
- Open hyper view and open model
- Select contour icon and provide a name of the result
Displacement
Mag
- Then apply
- result type –element stresses
vonmises
- it gives result of the stress produced in plate
2 . PROCEDURE FOR THE SQUARE PLATE WITH CIRCULAR HOLE:
Creating a square plate with circular hole using hypermesh
4. Set user profile as radioss or as optistruct
5. Create nodes
6. Produce surface of 500x500 having central hole of 200 mm
diameter
Creating mesh
- Select 2D/automesh
- Select surface and provide size of the mesh then click create
Create materials
- Click on materials icon
- Provide name /colour
- Type – isotropic
- Card image – MAT1
- Then create edit
Properties
- Create edit – provide thickness of the plate
- Two times return
Create component
Define load collector
- Pressure as a first load collector
- Spc as second load collector
- Right click on the load collector pressure and select make
current
- Then BCs create pressure
- As a same way right click on the load collector spc and select
make current
- Create constraint
Create load step
- Select SPC as spc and FORCE as pressure
- After creating a load step select analysis/optistruct
- Save file
- Select export option as ALL , run option as ANALYSIS , memory
option as memory default
- And click on optistruct
RESULT:
Result view
- Open hyper view and open model
- Select contour icon and provide a name of the result
Displacement
Mag
- Then apply
- result type –element stresses
vonmises
- it gives result of the stress produced in plate
1 . PROCEDURE FOR THE SQUARE PLATE WITH SQUARE HOLE :
Creating a square plate with square hole using hypermesh
7. Set user profile as radioss or as optistruct
8. Create nodes
9. Produce surface of 500x500 having central square hole of
200 mm x 200 mm
Creating mesh
- Select 2D/automesh
- Select surface and provide size of the mesh then click create
Create materials
- Click on materials icon
- Provide name /colour
- Type – isotropic
- Card image – MAT1
- Then create edit
Properties
- Create edit – provide thickness of the plate
- Two times return
Create component
Define load collector
- Pressure as a first load collector
- Spc as second load collector
- Right click on the load collector pressure and select make
current
- Then BCs create pressure
- As a same way right click on the load collector spc and select
make current
- Create constraint
Create load step
- Select SPC as spc and FORCE as pressure
- After creating a load step select analysis/optistruct
- Save file
- Select export option as ALL , run option as ANALYSIS , memory
option as memory default
- And click on optistruct
RESULT:
Result view
- Open hyper view and open model
- Select contour icon and provide a name of the result
Displacement
Mag
- Then apply
- result type –element stresses
vonmises
- it gives result of the stress produced in plate
CONCLUSION :
MAXIMUM VONMISES STRESSES (MPa)
MAXIMUM DEFLECTION (mm)
SQUARE PLATE 273.7 1.065
SQUARE PLATE WITH CIRCULAR HOLE
226.8 0.7063
SQUARE PLATE WITH SQUARE HOLE
206.4 0.6316
Analytical procedure to find displacement for the plate without hole :
Wmax =0.00406*qa4/D , D =Et3/12(1-v2)
Where,
W = displacement in mm v = passion ratio = 0.3
q = pressure = 2 Mpa E = modulus of elasticity in Mpa =210 Gpa
a = side of square = 500 mm
t = thickness of plate = 20 mm Wmax = 3.29 mm