Question: A solid cylindrical specimen, made of a perfectly plastic material, is being upset between flat dies with no friction. The process is being carried out

A solid cylindrical specimen, made of a perfectly plastic material, is being upset between flat dies with no friction. The process is being carried out by a falling weight, as in a drop hammer. Establish quantitative relationship between work piece height and velocity, and make a quantitative sketch of the velocity profile of the hammer as a function of displacement.

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