Stress in Flat Plate due to Different Diameter Holes
1. STRESS IN A
FLAT PLATE
DUE TO
CIRCULAR
HOLE
JJ TECHNICAL SOLUTIONS
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2. AIM
• To study the stresses in flat plate with circular hole, for
different radius of holes(r=0.01 to 0.09 m for D=0.2 m )
• To study the effect of increase in hole dia. on the max.
stresses developed.
• To study the stress profile across the circular hole,
through the plate width.
• To tabulate and plot the max. stress generated in the flat
plate with circular hole for different r/D.
3. SOLVER: ANSYS 14.0
MESH: STRUCTURAL
SOLID “PLANE 182”;
(QUAD 4 NODE 182)
SOLUTION: STEADY
STATE STRUCTURAL
SOLUTION
MATERIAL: Al. ALLOY
EX: 69E9 Pa
PRXY: 0.3
No. OF ELEMENTS:
244000
Fixed Edge
of Plate
0.2
0.4
r
(D)
D is fixed
r =
1. 0.01 m
2. 0.015 m
3. 0.02 m
4. 0.025 m
5. 0.03 m
6. 0.04 m
7. 0.05 m
8. 0.06 m
9. 0.07 m
10. 0.08 m
11. 0.09 m
Units:
Length: m
Pressure: MPa
Stress: MPa
P = 250 MPa
BOUNDARY CONDITIONS FOR THE PROBLEM STATEMENT
4. No. OF ELEMENTS: 287000 (Typ.)
STRUCTURED MESH ELEMENTS IN THE PLATE – SMOOTH MESHING
MESH: STRUCTURAL
SOLID “PLANE 182”;
(QUAD 4 NODE 182)
5. No. OF ELEMENTS: 287000 (Typ.)
MESH ELEMENTS IN THE PLATE NEAR THE HOLE
MESH: STRUCTURAL
SOLID “PLANE 182”;
(QUAD 4 NODE 182)
32. Results and Discussions
• The max. stresses generated due to various r/D, on the flat
plate configuration are plotted and studied
• The max. stress generated is almost constant for lower r/D,
however for r/D>0.25 it increased exponentially
• The stress distribution across the width of the plate is plotted
• The stress distribution across the width of the plate is non
linear for lower r/D, however for larger r/D it is a linear curve
• The stress distribution around the hole is studied.
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PROJECT REPORTS VISIT
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