Draw a sketch of the variation of stress versus time, and compute the maximum stress, minimum stress, mean stress, alternating stress, and stress ratio, R. 3. A link in a packaging machine mechanism...

Draw a sketch of the variation of

stress versus time, and compute the maximum stress, minimum

stress, mean stress, alternating stress, and stress ratio, R.

Extracted text: 3. A link in a packaging machine mechanism has a square cross section of 0.40 in on a side. It is subjected to a load that varies from a tensile force of 860 lb to a compressive force of 120 lb.