Learning Goal: I’m working on a mechanical engineering question and need the explanation and answer to help me learn.
Question 1The gage length of a tensile test specimen =150mm. It is subjected to a tensile test in which the gripsholding the end of the test specimen are moved with a relative velocity (v) = 0.1 m/s. Construct a plotof the strain rate () as a function of length as the specimen is pulled to a length = 200 mm.
Question 2A workpart with starting height h = 100 mm is compressed to a final height of 50 mm. During thedeformation, the relative speed of the plattens compressing the part = 200 mm/s. Determine thestrain rate at (a) h = 100 mm, (b) h = 75 mm, and (c) h = 51 mm.
