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 log10 N

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A:

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Q: 500 450 400 350 300 250 200 150 100 50 0.005 0.01 0.015 0.02

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Q: 450 400 350 300 250 200 150 100 50 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 0.02 Strain…

A:

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A: Given: From graph, The number of cycles at 210 MPa, N1 = 106 The number of cycles at 480 MPa, N2 =…

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.