Week 1 Stress Concentration on a Plate with hole
Stress Concentration on a Plate with hole
Objective
To select among the two design models to be used for a product using FEA method considering:
- Analysis point of view
- Manufacturing point of view
|
Mesh Details |
Model 1 |
Model 2 |
|
Element Size: |
3.3 |
3.3 |
|
No: of Nodes: |
28535 |
31826 |
|
No: of Elements: |
15887 |
17742 |
Loads & Constraints
500N Axial Load
One Side of the plate is Fixed
Stress Analysis
Deformation
Results
|
|
Maximum Stress(N/mm2) |
Maximum Deformation(mm) |
∆Ⅼ/Ⅼ |
Volume |
|
Model1 |
0.60567 |
0.00027489 |
0.9134×10-6 |
0.00099517m3 |
|
Model2 |
0.58341 |
0.00029721 |
0.9907×10-6 |
0.00095276m3 |
Conclusion
Model 1 is less deformed even though the maximum stress acting at it was higher when compared to Model 2.
The number of elements which has undergone Maximum deformation is higher for Model 2.
So in Analytical point of view, Model 1 is more durable and is a better choice.
Model 1 has more material volume and mass compared to Model 2, but the difference is minimal.
When considering the additional manufacturing process required for the Model 2, It will not reduce the production cost considerably.
So, In Manufacturing point of view also, Model 1 is a better choice.