Practical Finite Element Simulations with SOLIDWORKS 2022 by Khameel B. Mustapha

Author:Khameel B. Mustapha
Language: eng
Format: epub
Publisher: Packt Publishing Pvt. Ltd.
Published: 2021-12-30T00:00:00+00:00

Figure 5.52 – (a) Editing the plot of the von-Mises stress; (b) Ways to obtain a 3D plot of the von-Mises stress

Upon completing steps 1 – 3, the graphics window will be updated to display the variation of the von Mises stress, as depicted in the following screenshot. Here, both the maximum von Mises stress and the Yield strength property of the material of the disk are highlighted:

Figure 5.53 – The 3D plot of the von-Mises stress

The preceding screenshot indicates that the maximum von Mises stress is way beyond the Yield strength property of the disk. This shows that the disk will not survive the operating speed of 20,000 rpm that has been applied to it during operation. To improve this design, you may wish to change the material increase the thickness of the disk. Alternatively, if you are dealing with a design task for which the material specification is fixed, then an optimization task can be conducted to determine the optimal thickness that will allow the disk to operate safely.

With that, we can conclude this second case study. You will agree that we have come a long way. We started by providing some background details about three-dimensional bodies that are endowed with axisymmetric properties. We then walked through our first case study, which dealt with the static analysis of a thin-walled cylinder using shell elements. Following that, we took on the second case study and explored the use of the plane axisymmetric element to analyze a flywheel idealized as a rotating disk. Note that although we have deployed shell elements in this chapter solely for analyzing axisymmetric problems, their usage goes far beyond this. For instance, they can be used to analyze various forms of non-axisymmetric, thin-walled structural members.

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