Bolt shear method example

In this example, you use the bolt shear method to create a margin of safety calculation for the pin in the piston rod. Assume the shear strength of the pin in single shear is 50,000 N. Also assume that the compressive forces act along the Y-axis of the model and the faces on the crank-end of the piston rod are fixed to ground.

Assume that the units for the model are kilogram, millimeter, and second. Thus, the unit for the force result that the software uses in the margin of safety calculation is mN.

Note:

This example assumes that you created load case sets. It begins with the Calculation Creation dialog box open and Bolt shear selected as the method.

1. On the Inputs tab, in the Single Shear Load Allowable (Pss) box, type 50000.The shear strength of the pin is 50,000 N.

2. In the Load Factor (f) box, type 0.5.The load factor for a pin in double shear is 0.5.

3. Click Load Extraction .

4. In the Load Extraction dialog box, do the following:From the Result Type list, select Reaction Force - Nodal.From the Component list, select Y.

5. In the Selection group, do the following:From the Type list, select Polygon Face.In the graphics window, pick the two polygon faces that are fixed to ground.The software creates a set of results that contains the Y-component of the reaction force at all the nodes in the selected polygon faces.Click Confirm source edit .The source appears in the Sources table.

6. In the Operations group, do the following:From the Filtering list, select None.From the Absolute Values list, select No.From the Aggregation list, select Sum.The software uses the sum of the values in the set of results as the working load in the margin of safety calculation.In the Factor box, type 1.Note: Because you are using a method where the software knows the dimensions and units for the various inputs into the margin of safety calculation, it is not necessary for you to correct for any incompatibilities.

7. Click OK (both dialog boxes).

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Bolt shear method example, Simcenter 3D 2021.1 Series

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