Question

A helical compression spring is made from music wire that is 1.04 mm in diameter and...

A helical compression spring is made from music wire that is 1.04 mm in diameter and has an outer coil diameter of 13.74 mm with a free length of 50.8 mm and 10 total coils with plain ends.

What is the solid length Ls?

What is the spring rate k in N/m ?

If the spring rate is 1000 N/m what is the maximum shear stress, tau , in the wire when the spring is compressed 25.4 mm from its free length?

What applied force is required to achieve a compressed length of Ls ?

Use a spring rate of k=1000 N/m.

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