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

[user12323567]

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

 

[.Scott]

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.

 

[user12323567]

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:)

 

[Dr.D]

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.