Week 1 Stress Concentration on a Plate with hole
Objective:- The objective is to perform the FEA on the 2 different designs and define them based on the result of deformation and equivalent stress. And select the design for Analysis standpoint or manufacturing standpoint depending on the results.
Q1) Answer:-
| CASE I | CASE II |
|
Deformation:- Max. Deformation- 0.00027488 mm
|
Deformation:- Max. Deformation- 0.00029719 mm |
|
Equivalent Stress:- Max. Stress- 0.60621 Mpa Min. Stress- 0.012637 Mpa
|
Equivalent Stress:- Max. Stress- 0.58453 Mpa Min. Stress- 0.0018474 Mpa
|
Q2) Answer:-
1-From an Analysis standpoint, I will the Case 1 design because the deformation developed in case 1 is lower than the case 2. As there is only one hole at the center and more material than case 2.
2-And in the case 1 design we can make the required changes as per our requirements and get the desired design.
Q3) Answer:-
1- From a manufacturing standpoint, I will select Case 2 design because the stress developed in the case 2 is lower as compared to case 1. As there are 3 holes on the plate so holes act the stress reducer.
2- And the weight of the geometry of case 2 is less and for the manufacturing the less weight component is suitable.



