The steel chisel has a diameter of \(0.5 \mathrm{in}\). and a length of \(10 \mathrm{in}\). It is struck by a hammer that weighs \(3 \mathrm{lb}\), and at the instant of impact it is moving at \(12 \mathrm{ft} / \mathrm{s}\). Determine the maximum compressive stress in the chisel, assuming that \(80 \%\) of the impacting energy goes into the chisel. \(E_{\text {st }}=29\left(10^{3}\right) \mathrm{ksi}, \sigma_{Y}=100 \mathrm{ksi}\).

Transcribed Image Text:

10 in.