Week 1 Stress Concentration on a Plate with hole

Objective: To compare the deformation and maximum stress developed on a structural steel model for the given two cases, to select valid design as per analysis standpoint.

Software Used: Ansys-19.0-Workbench.

Material: Stainless steel.

Given cases:

Case-1:

Case-2:

Process flow in FEA:

Procedure:

1. Open Ansys Workbench.
2. Select Static structural.
3. Edit the Engineering data to import different Materials as per preference.
4. From the Geometry tab, open space claim to design the model.
5. From the Project Schematic, update the model.
6. Edit the setup to generate mesh, apply loads and solve the problem.
7. From the solution, import type of results needed to display and solve all results.
8. Export each result to the required format and analyse the results.

Analysis Results:

Case-1: plate_with a hole

Total deformation:

Equivalent Stresses:

Case-2: plate_with_holes

Total Deformaton:

Equivalent Stress:

Type of Result	Case-1	Case-2
Total Deformation(Min)	0 mm	0 mm
Total Deformation(Max)	2.7492e-004 mm	2.9733e-004 mm
Equivalent Stress(Min)	6.9752e-003 MPa	5.3124e-004 MPa
Equivalent Stress(Max)	0.60615 MPa	0.5806 MPa

Conclusion:

• As per the results, although there is more max stress in the plate_with_holes in a negligible numbers, plate_with_hole is considered as best design because of less deformation.
• To conclude the best manufacturing design, plate_with_hole is best design due to single hole.