Calculate the Pressure that Shrink film exerts on a cylinder

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SUMMARY

The discussion focuses on calculating the pressure exerted by shrink film on a cylinder, specifically addressing the influence of the film's tension and the radius of the film tube. The shrink film width is specified as 0.2 m, while the cylinder radius is 0.04 m. Participants emphasize the need to determine the tension in the shrink film, which is crucial for accurate pressure calculations. Technical details such as stress-strain curves of the material are mentioned, indicating their relevance in solving the problem.

PREREQUISITES
  • Understanding of basic physics principles, particularly pressure and tension.
  • Familiarity with stress-strain curves and material properties.
  • Knowledge of mathematical equations related to pressure calculations.
  • Ability to apply geometric concepts related to cylinders and tubes.
NEXT STEPS
  • Research methods to calculate tension in materials, specifically for shrink films.
  • Learn about pressure calculations in cylindrical systems.
  • Study the application of stress-strain curves in determining material behavior under tension.
  • Explore mathematical models for pressure distribution in flexible materials.
USEFUL FOR

Engineers, material scientists, and anyone involved in packaging design or mechanical applications involving shrink films and cylindrical objects will benefit from this discussion.

Sjaak
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Homework Statement
Exercise: Calculate the pressure shrink film tube exerts on a cylinder
Relevant Equations
This is a problem solving exercise which requires some research to get to the right method and answer.
for a start I think I can use a derivative of the laplace equation often used for calculating the pressure of a bandage onto a human limb to calculate the pressure.

P (Pascals)= Tension (Newtons) / Radius (metres) x Film width (metres)
First off I am not sure if the equation is even suitable for solving this problem. Secondly, I have no idea how to determine the tension the shrink film can provide. Furthermore, I also think the radius of the film tube has a influence on the pressure, I guess in this problem the tube is regarded to have (nearly) the same radius as the cylinder. I do have some technical information on the material such as stress strain curves.

The shrink film width is a 0.2 m and the cylinder radius is 0.04 m.

I am not great at math and physics so bear with me, but I really want to solve this problem. Any tips, experience or suggestions are welcome :)
 
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You are going to need to find the tension somehow, but there's not enough info so far.
What else do you know?
 

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