Recommendation for mechanics software

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SUMMARY

The discussion focuses on simulating an iron cylindrical cantilever beam with a length of 160mm and a diameter of 36mm to determine optimal placement for a full-bridge strain gauge circuit. It is established that the strain gauge should be positioned at the base of the beam, near the attachment point, where stress is maximized. ANSYS is recommended as the software tool for modeling the beam and analyzing stress and strain distributions. The discussion also references beam theory, specifically for cantilever beams, to support the placement strategy.

PREREQUISITES
  • Understanding of cantilever beam mechanics
  • Familiarity with strain gauge technology
  • Basic knowledge of ANSYS software for simulation
  • Concepts of stress and strain in materials
NEXT STEPS
  • Research how to use ANSYS for beam modeling and load application
  • Study the principles of beam theory, particularly for cantilever beams
  • Learn about full-bridge strain gauge configurations and their applications
  • Explore methods for visualizing stress distributions in mechanical components
USEFUL FOR

Mechanical engineers, students in mechanics, and anyone involved in structural analysis or strain measurement in materials will benefit from this discussion.

davewest751
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I have little experience of mechanics and I need to simulate an iron cylindrical cantilever beam with a length of 160mm and diameter of 36mm. I need to find the points on the beam where I can place a full-bridge strain gauge circuit and get the strongest signal. Ideally I want to have an actual image of the beam with coloured gradient areas on the beam like the attached jpeg.

Thanks in advance.
 

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  • cylinder cantilever beam.jpg
    cylinder cantilever beam.jpg
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A strain gauge will measure strain at the surface of the beam, so since strain is related to stress you just need to place the gauge where the stress is the highest- in the case of a cantilever beam at its base close to the attachment point.

http://en.wikipedia.org/wiki/Beam_theory#Cantilever_beams
 
You can use ANSYS to model and insert loads on your prescribed beam and get results showing stress and strains. But as Mech_Engineer said, for cantilever beams, it's pretty evident where the stress is highest i,e the point where it is affixed to.
 

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