In a mechanical lab, a tensile test was performed on a rod of alloy having an original diameter 22 mm and length 100 mm to fracture. The fractured alloy was elongated to 113 mm and the diameter of the fracture part becomes 18 mm, as shown in Figure 2.1. Figure 2.2 is the stress-strain curve obtained from the test. Given the yield strength (o) value of the alloy is 170 MPa a) Analyse the value of engineering stress, true stress, and safety factor when the rod is loaded with a tensile force of 40 kN. b) Analyse the engineering strain on x, y and z-axis direction for the alloy at this tensile force. c) Calculate the percentage of elongation and percentage ofreduction area of the alloy from the test. d) Referring to Figure 2.2, name and explain the deformation type in Region I and Region II. State the observation on the alloy when the maximum engineering stress is applied. Le- 100 mm D. - 22 mm LI=113 mm Di = 18 mm Before test Sebelum jian) After test [Selepas jian) Figure 2.1 (Rejeh 2.11

In a mechanical lab, a tensile test was performed on a rod of alloy having an original diameter 22 mm and length 100 mm to fracture. The fractured alloy was elongated to 113 mm and the diameter of the fracture part becomes 18 mm, as shown in Figure 2.1. Figure 2.2 is the stress-strain curve obtained from the test. Given the yield strength (o) value of the alloy is 170 MPa a) Analyse the value of engineering stress, true stress, and safety factor when the rod is loaded with a tensile force of 40 kN. b) Analyse the engineering strain on x, y and z-axis direction for the alloy at this tensile force. c) Calculate the percentage of elongation and percentage ofreduction area of the alloy from the test. d) Referring to Figure 2.2, name and explain the deformation type in Region I and Region II. State the observation on the alloy when the maximum engineering stress is applied. Le- 100 mm D. - 22 mm LI=113 mm Di = 18 mm Before test Sebelum jian) After test [Selepas jian) Figure 2.1 (Rejeh 2.11

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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