Week 1 Stress Concentration on a Plate with hole

Objectives:- Designing two plates with given dimensions with one and three holes, with the component, created perform the analysis required to be done.

Below are the requirements of the Challenge

1. Create the geometry model ( plate with one hole) in space claim

2. Create a geometry model (plate with three holes ) in space claim.

3. From an analysis standpoint of view, which design will you select? Explain why.

4. From a manufacturing standpoint of view, which design will you select? Explain why.

5. Write a detailed report.

Models created based on requirement:-

we create the models using SpaceClaim, at first we create the 2-d design of required dimensions, and then we will convert to 3D Model using the Pull option.

                                                                    Fig 1. Plate with a hole

                                                                   Fig 2. Plate with three holes 

Once the geometry is created we will save the geometry and proceed to prepare for Analysis, we will apply the material structural steel to the geometry, then we will change the mesh type to Tetrahedrons with a mesh size of 2 mm, Then we apply the Boundary Conditions we apply for Fixed support and apply Force of 5OON, on the right side.

Once all the Boundary conditions are applied, we will check the solutions, where we have to find the Deformation and Equivalent stress.

Once the solution is ready, we will check and Analyze the result.

Compare the deformation and maximum stress developed on a structural steel model for 2 cases.

Answer.

Deformation: In the given model, we have fixed one end of the model and hence all the deformation has been observed on the end. where the load was applied. The below images compare deformation in both cases.

                                                             Fig 3. Plate with one Hole ( Total Deformation)

                                                              Fig 4. Plate with three holes ( Total Deformation )

As above suggests the Plate with one hole has Total Deformation of 2.7*10-4 mm and the Plate with three holes has Total Deformation of 2.9*10-4 mm, From the above results, we can conclude that the Plate with three holes has more deformation than the Plate with one hole.

Maximum stress: The Maximum stress shows the stress generated on applying the load also with the Maximum load analysis, we will be able to identify a section of geometry, where more stress will be concentrated. The below image captures maximum stress.

                                                       Fig 5. Plate with one hole ( Equivalent stress)

                                                       Fig 6.Plate with three holes( Equivalent stress)

From the above images, a Plate with one hole has max.stress of 0.60 Mpa, and a Plate with three holes has max.stress of O.58Mpa, so we can conclude that a Plate with one hole has max.stress compared to a plate with three holes.

From the analysis standpoint of view, which design you will select why? Explain why?

Answer: From an Analysis standpoint, I will consider a Plate with three Holes as the stress distribution is even throughout the surface whereas, in a Plate, with one Hole the stress is concentrated on one Hole, which may result in failure if the higher load is applied. Also, the deformation is more in the plate with three holes, however, the difference is negligible.

From a manufacturing standpoint of view, Which design you will select why? Explain why?

Answer: From a Manufacturing standpoint of view, I will consider the plate with one Hole as the difference between the Max. Stress is negligible. Also, the manufacturing process is comparatively simple, which reduces overall manufacturing cost.

Conclusion: Hereby we have created a geometry, with the given design data, applied the boundary condition, and performed various analysis as per requirement.