Analysis of the stress of the part

Inventor allows carrying out the stress analysis for a particular part. The calculation is done through the finite elements method.

Let us draw a circle with diameter of 20 millimeters, with the center on the origin. Finish sketch.

Perform the Extrude operation. Enter the distance of 300 millimeters, press OK. Name this part Shaft and save it.

 

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The material is Steel, Carbon.

Right click on the name of the part and open iProperties. On the tab Physical ensure that selected material is Steel, Carbon. Close the window.

On the Environments tab select Stress Analysis.

 

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You should have an available Stress Analysis menu. Press Create simulation, rename it to Calculation of bending. For now, leave the other settings unchanged.

 

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Press OK.

First, check whether the software assigned the correct material for calculation. Open the Assign materials window. Here we see that the field contains correct value: Steel, Carbon.

 

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Here we can override the material and choose one of available materials. Press OK.

Next, we specify the constraint for our calculations. Select Fixed constraint and specify the end planes of the shaft.

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Apply.

On the Loads panel select Force. Set the location of the force on the body of the shaft.

 

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Check Use vector components. Enter the exact force value of 1000 – 1000 Newtons on the Y axis. Enter -1000 to choose the opposite direction of the force. Apply.

In the browser area, you can see the corresponding folders with loads and constraints, you can edit them at any time.

Now when you have specified the loads and fixed constraints, let us deal with the ways to separate a part into the finite elements.

The finite elements method is a method when a whole body is divided into the finite number of figures, tetrahedrons.

On the Mesh panel there is an item Mesh view.

 

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To get more detailed results, you need to set up the mesh.

Click on the Mesh settings. Here you can specify the average element size. Enter 0,05, the maximum element size is 0,1, leave grading factor unchanged, maximum turn angle is 20°.

Depending on the parameters of your hardware, you can specify larger or smaller values. This will directly impact the accuracy of calculations.

To perform calculations press Simulate. Than press Run.

 

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Three-dimensional constraints and loads are created in several directions. These multi-direction loads are added to get the equivalent load, which is also knows as von Mises stress.

The result of calculation is displayed as the exact von Mises stress.

 

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You see the result as coloring of the part into several colors. Each color has its own load. Blue means the smallest load, while red is the maximum one. On the left part of the screen, you may see a graph, where you can compare a color to its value.

Double click in browser area to select other obtained results.

You can view the first principal stress, the third principal stress, displacement, and safety factor. In addition, you may view Stress, Displacement, and Strain in every direction.

If you click on the Mesh view, you can see that the part is divided into the smaller elements.

 

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On the Result panel, you can view the load animation.

You can specify the place for the probe and view the results of calculation for every point on the surface of your part.

On the Display panel you can enable the display of the minimum and maximum results of calculation.

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With the adjustment option, you can select a multiplier to view more detailed results.

The Report panel is used to create reports on all the results of calculation. It is saved in the HTML format and contain all calculation data.

Here you see all loads, constrains, materials, and the results of calculations.

 

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Finish stress analysis and save the part.

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