Can Fatigue Failure of Material be Demonstrated at Home Using Everyday Items?

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Discussion Overview

The discussion centers around methods to demonstrate fatigue failure of materials using common household items, focusing on different types of loading such as axial, bending, and torsional loading. Participants share creative ideas for experiments that can be conducted at home.

Discussion Character

  • Exploratory, Homework-related

Main Points Raised

  • One participant asks for creative ways to display fatigue failure using household items.
  • Another participant suggests specific methods, including bending a nail, twisting a plastic part, and bending a solid wire.
  • A later reply expresses gratitude for the suggestions provided.
  • One participant notes that demonstrating torsional fatigue may be challenging due to the time required for many cycles, and that axial fatigue could also be difficult to show effectively.

Areas of Agreement / Disagreement

Participants generally agree on the types of experiments that can be conducted, but there is a disagreement regarding the feasibility of demonstrating torsional and axial fatigue effectively at home.

Contextual Notes

Some limitations are noted regarding the time required for torsional fatigue demonstrations and the potential difficulty in showing axial fatigue.

user12323567
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Homework Statement
What are some ways to display fatigue failure of material due to axial, bending, torsional loading using common household items?
Relevant Equations
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What are some creative ways to display fatigue failure of material due to axial, bending, torsional loading using common household items? This is an experiment I have to do at home, I need help with some ideas
 
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Bang a long nail part way into a block - then bent it back and forth 'till it breaks.
Bend or twist a plastic part (perhaps a soft drink bottle) back and forth.
Bend a solid wire back and forth - with or without the insulation.
 
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.Scott said:
Bang a long nail part way into a block - then bent it back and forth 'till it breaks.
Bend or twist a plastic part (perhaps a soft drink bottle) back and forth.
Bend a solid wire back and forth - with or without the insulation.
Thank you Scott! These are great ideas:)
 
Torsional fatigue often takes a long time (many cycles) and will be hard to demonstrate by hand. Axial fatigue will likely be even more difficult.
 

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