19) Fatigue test results of a material are shown in the diagram. a) Estimate the ultimate static strength of this material b) Estimate the fatigue (endurance) limit. c) If this test specimen has a...

Extracted text: 19) Fatigue test results of a material are shown in the diagram. a) Estimate the ultimate static strength of this material b) Estimate the fatigue (endurance) limit. c) If this test specimen has a cross-sectional area of 14 cm² and subjected to a maximum repeated load of 2800 kg over it, after how many repetitions will it fail? d) Determine the fatigue strength at 1000 cycles o (kgf/cm³) 500 400 300 200 100 0 1 2 3 4 5 6 7 log1o N