Simulation Quiz 4

Stress Analysis in Ansys Mechanical - Simulation Quiz 4

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1 / 10

Where does the maximum Equivalent Stress appear in the Coarse Model? Select the best option.

D

B

C

A

2 / 10

What is the Total Reaction Force at the Outlet Port? Select the option closest to the correct result. 

120 N

150 N

130 N

140 N

3 / 10

What is the maximum Total Deformation for the overall Coarse Model? Select the option closest to the correct result. 

9.6e-4 mm

7.6e-4 mm

6.6e-4 mm

8.6e-4 mm

4 / 10

Review the Reaction Force for the Displacement Support applied on the vertex. What is the reaction force in the z direction? Select the best option closest to the correct answer.

140 N

0 N

13,300 N

6,700 N

5 / 10

For the given Exhaust Manifold model, which criteria is used to create the Submodel?

Region with high Total Deformation gradient

Region with maximum Equivalent Stress

Prior knowledge of identifying the region of interest

Region with coarsest mesh density

6 / 10

What is the Maximum Equivalent Stress for the Submodel? Select the option closest to the correct result. 

4 MPa

5 MPa

7 MPa

6 MPa

7 / 10

Why is the Solution Cell of the Coarse Model system linked to the Setup Cell of the Submodel system?

To map the stresses of the solution of the Coarse Model analysis to the Submodel analysis

To ensure that same Boundary Conditions are applied in the Coarse Model and the Submodel

To map Displacements from Coarse Model to the Cut Boundaries in the Submodel

To ensure that the same mesh is used for both the Coarse Model and the Submodel

8 / 10

Consider the case utilizing a half-symmetry model for the Exhaust Manifold. If we model half of the geometry (XY plane), what will be the value of the applied pressure? (Do not re-solve the model.)

0.05MPa

0.1MPa

0.025 MPa

0.0125 MPa

9 / 10

Which of the following statements is correct concerning the Exhaust Manifold submodel? Select the best option.

The pressure of 0.05 MPa applied in the Coarse Model needs to be applied to the inner walls of the Submodel.

The pressure of 0.05 MPa applied in the Coarse Model does not need to be applied to the inner walls of the Submodel since the Imported Loads at the cut boundaries account for the effect of the applied pressure.

The material property of the submodel can be changed if the user wishes to perform studies comparing the effect of different materials.

The distance of the cut boundaries from the location of peak stress in the submodel must be the same; one cut boundary should not be placed further away from the peak stress location compared to another cut boundary.

10 / 10

Compare the Equivalent Stress between the Coarse Model and the Submodel. Specifically, compare the same spatial location between the two systems and select the best option below that is correct.

The stress fields are very different between the Coarse Model and Submodel since the Submodel contains different boundary conditions.

The stress field is very similar between the Coarse Model and the Submodel, but the peak value is lower on the Submodel.

The stress field is very similar between the Coarse Model and the Submodel, but the peak value is higher on the Submodel.

The stress fields are very different between the Coarse Model and Submodel since the Submodel contains results with a higher fidelity.

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Linear Stress Analysis in Ansys Mechanical

Simulation of an Exhaust Manifold

Total Available Time - 30 mins

Total Number of Questions - 10