Calculating deflection of a tube

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SUMMARY

The discussion focuses on calculating the maximum deflection of a PTFE tube with a diameter of 65mm, a thickness of 5mm, and a length of approximately 3m, with 1.3m unsupported. The tensile strength of the material ranges from 10-40 MPa. The recommended approach is to treat the tube as a beam and utilize Roark's formulas for deflection to obtain accurate results. This calculation is critical for applications where structural integrity under load is essential.

PREREQUISITES
  • Understanding of beam deflection principles
  • Familiarity with Roark's formulas for beam deflection
  • Knowledge of material properties, specifically tensile strength
  • Basic mechanics of materials concepts
NEXT STEPS
  • Study Roark's Formulas for Stress and Strain for beam deflection calculations
  • Learn how to calculate deflection using the formula for cantilever beams
  • Research the mechanical properties of PTFE and its applications
  • Explore software tools for structural analysis, such as ANSYS or SolidWorks
USEFUL FOR

Engineers, materials scientists, and professionals involved in structural design and analysis, particularly those working with polymer materials like PTFE.

Mu naught
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I'd like to calculate the maximum deflection a PTFE tube of 65mm diameter and 5mm thickness. The tube is roughly 3m long and a 1.3m section will be unsupported, I want to know what the maximum deflection the end will experience under it's own weight. I've looked up it's tensile stength which is betweem 10-40 MPa (I don't really understand that unit though)

Could anyone help with this?

Btw, this is not a homework problem this is for a real application.
 
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Mu naught said:
I'd like to calculate the maximum deflection a PTFE tube of 65mm diameter and 5mm thickness. The tube is roughly 3m long and a 1.3m section will be unsupported, I want to know what the maximum deflection the end will experience under it's own weight. I've looked up it's tensile stength which is betweem 10-40 MPa (I don't really understand that unit though)

Could anyone help with this?

Btw, this is not a homework problem this is for a real application.

Treat it like any other beam. Roark's is a good reference for the appropriate formula.

CS
 

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