In a mechanical lab, a tensile test was performed on a rod of alloy having an original diameter 20 mm and length 150 mm to fracture. The fractured alloy was elongated to 160 mm and the diameter of the fracture part becomes 15 mm, as shown in Figure 2.1. Figure 2.2 is the stress-strain curve obtained from the test. Given the yield strength (6) value of the alloy is 180 MPa (a) Analyse the value of engineering stress, true stress, and safety factor when the rod is loaded with a tensile force of 35 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 of reduction 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. { Do = 20 mm Li = 160 mm Di = 15 mm Lo = 150 mm Before test [Sebelum ujian] After test [Selepas ujiam] Figure 2.1 [Rajah 2.11

In a mechanical lab, a tensile test was performed on a rod of alloy having an original diameter 20 mm and length 150 mm to fracture. The fractured alloy was elongated to 160 mm and the diameter of the fracture part becomes 15 mm, as shown in Figure 2.1. Figure 2.2 is the stress-strain curve obtained from the test. Given the yield strength (6) value of the alloy is 180 MPa (a) Analyse the value of engineering stress, true stress, and safety factor when the rod is loaded with a tensile force of 35 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 of reduction 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. { Do = 20 mm Li = 160 mm Di = 15 mm Lo = 150 mm Before test [Sebelum ujian] After test [Selepas ujiam] Figure 2.1 [Rajah 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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