Depth (mm) Strain 1 Strain 2 Strain 3 0.1 9.54E-07 -6.67E-06 4.67E-05 0.2 6.94E-07 -6.64E-06 3.60E-05 0.3 4.14E-07 1.32E-06 2.01E-05 0.4 2.77E-07 3.01E-07 1.34E-05 0.5 1.46E-07 1.08E-06 6.98E-06 0.6 6.85E-08 -4.66E-07 3.49E-06 0.7 3.27E-08 -4.45E-07 1.43E-06 0.8 -7.29E-09 -3.72E-08 -3.36E-07 0.9 2.45E-08 -6.99E-08 1.20E-06 1.0 2.41E-08 -3.61E-07 1.22E-06 a. The data included in the table are from the strain gauges of a hole- drilling rosette gauge. Calculate the principal stresses using the incremental hole-drilling technique. The ultra high-strength steel being analysed has Young's modulus 195 GPa and Poisson's ratio 0.29. The values for a and b can be used from Activity 19.2b. In order to achieve full marks, each step of the calculations should be detailed, including any assumptions being made. Include equations, screenshots of Excel and written descriptions in your answer, and graphical representation of data as appropriate. (20 marks) b. Describe another residual stress technique that could be used to characterise the surface stresses at the same depths as in Question 3(a).

Depth (mm) Strain 1 Strain 2 Strain 3 0.1 9.54E-07 -6.67E-06 4.67E-05 0.2 6.94E-07 -6.64E-06 3.60E-05 0.3 4.14E-07 1.32E-06 2.01E-05 0.4 2.77E-07 3.01E-07 1.34E-05 0.5 1.46E-07 1.08E-06 6.98E-06 0.6 6.85E-08 -4.66E-07 3.49E-06 0.7 3.27E-08 -4.45E-07 1.43E-06 0.8 -7.29E-09 -3.72E-08 -3.36E-07 0.9 2.45E-08 -6.99E-08 1.20E-06 1.0 2.41E-08 -3.61E-07 1.22E-06 a. The data included in the table are from the strain gauges of a hole- drilling rosette gauge. Calculate the principal stresses using the incremental hole-drilling technique. The ultra high-strength steel being analysed has Young's modulus 195 GPa and Poisson's ratio 0.29. The values for a and b can be used from Activity 19.2b. In order to achieve full marks, each step of the calculations should be detailed, including any assumptions being made. Include equations, screenshots of Excel and written descriptions in your answer, and graphical representation of data as appropriate. (20 marks) b. Describe another residual stress technique that could be used to characterise the surface stresses at the same depths as in Question 3(a).

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter1: Heat, Temperature, And Pressure

Section: Chapter Questions

Problem 17RQ: Convert 22C to Fahrenheit.

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