Simulation Quiz 2

Stress Analysis in Ansys Mechanical - Simulation Quiz 2

Complete the simulation and have all the results ready BEFORE starting the quiz.

Once you have finished the exam, click on the 'Mark Complete' button to save your progress and move to the next section.

1 / 10

What is the maximum equivalent elastic strain in the assembly? Select the best option closest to the correct answer.

6e-4 mm/mm

1.2e-3 mm/mm

3e-4 mm/mm

1.6e-3 mm/mm

2 / 10

What is the maximum Total Deformation observed in the model? Select the option that is closest to the correct result.

1.2 mm

0.4 mm

0.8 mm

120 mm

3 / 10

What is the maximum Equivalent Stress of the Pin? Select the option closest to the observed value.

20 MPa

10MPa

1 MPa

120 MPa

4 / 10

Add a Directional Deformation for the pin body in the y direction and select the best option that is closest to the correct peak value.

-0.6 E-3 mm

-0.1 E-4 mm

0.6 E-4 mm

0.13 E-3 mm

5 / 10

Consider a hypothetical case where the material of the entire hook assembly was changed to aluminum, keeping everything else the same (contact definition, mesh, loads and boundary conditions. (Do not re-run the simulation.) Aluminum has a similar Poisson’s ratio as steel but has an elastic modulus that is 2.7 times lower. Select the best statement below that is correct.

The equivalent stress distribution cannot be predicted without actually running a numerical simulation.

The equivalent stress distribution of the aluminum assembly will be the same or very similar to that of steel.

The equivalent stress distribution of the aluminum assembly will be 2.7x lower to that of steel.

The equivalent stress distribution of the aluminum assembly will be 2.7x higher to that of steel.

6 / 10

Consider the image of equivalent stress below for the Pin from this simulation. Select the best option that describes this image.

The large equivalent stresses indicate that there is bending at the bottom of the pin but not at the top.

The equivalent stress distribution of the pin from the simulation does not match this image.

The large equivalent stress values at the bottom of the pin indicate that contact regions transfer the loads from the hook to the pin in this simulation.

The large equivalent stress values shown in the simulation results are due to the fact that the load is transferred to the lower part of the pin.

7 / 10

Check the Reaction Forces of the model, specifically reaction forces in the x-direction. Select the best option below that is correct.

Reported reaction force in x-direction is equal to the applied load.

Reported reaction force in x-direction is small but non-zero. This is due to numerical round-off error.

Reported reaction force in x-direction is small but non-zero. This is due to use of a Symmetry Region and is expected since reaction forces in the normal direction to the plane of symmetry do not have to be zero to achieve force equilibrium.

Reported reaction force in x-direction is zero or very nearly zero.

8 / 10

Which of the following values for “Pinball Radius” would ensure that the top contact region between the Pin and Bracket will be closed? Select the option that would ensure closed contact.

0.1

0.15

0

0.5

9 / 10

Compare the Total Deformation and the Directional Deformations in the x, y, and z directions. Select the best option that is correct.

Over 90% of the maximum total deformation is acting in the y direction

The maximum total deformation is due to an almost equal combination of movement in the y and z directions

Over 90% of the maximum total deformation is acting in the x direction

Over 90% of the maximum total deformation is acting in the z direction

10 / 10

What is the maximum Equivalent Stress observed for the entire assembly? Select the option closest to the observed value.

80 MPa

120 MPa

160MPa

240 MPa

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Linear Stress Analysis in Ansys Mechanical

Simulation of a Simplified Hook

Total Available Time - 30 mins

Total Number of Questions - 10