A- The following data was obtained from a tensile test on a specimen of 10mm diameter and gauge length Lo=50mm. Load (KN) 38 76.2 92.7 107 149 160.4 155 142 124.7 Elongation (mm) 0.025 0.152 0.254 0.508 2.032 3.556 4.064 5.1 5.842 Using the graphic paper supplied, plot the load-elongation diagram and determine: 1-0.2% proof stress. 2- The Young's modulus. 3- Ultimate stress. 4- Fracture stress

A- The following data was obtained from a tensile test on a specimen of 10mm diameter and gauge length Lo=50mm. Load (KN) 38 76.2 92.7 107 149 160.4 155 142 124.7 Elongation (mm) 0.025 0.152 0.254 0.508 2.032 3.556 4.064 5.1 5.842 Using the graphic paper supplied, plot the load-elongation diagram and determine: 1-0.2% proof stress. 2- The Young's modulus. 3- Ultimate stress. 4- Fracture stress

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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In a tensile test on a specimen of black mild steel of 12 mm diameter, the following results were obtained for a gauge length of 60 mm. Load W(kN) 5 10 15 20 25 30 35 40 Extension x (10-3 mm) 14 27.2 41 54 67.6 81.2 96 112 When tested to destruction. Maximum load = 65 kN; load at fracture = 50 kN, diameter at fracture = 7.5 mm, total extension on gauge length = 17 mm. Find young's modulus, specific modulus, ultimate tensile stress, breaking stress, true stress at fracture, limit of proportionality, percentage elongation, percentage reduction in area. The relative density of the steel is 7.8. Draw the straight line graph.
In a tensile test on a specimen of black mild steel of 12 mm diameter, the following results were obtained for a gauge length of 60 mm. Load W(kN) 5 10 15 20 25 30 35 40 Extension x (10-3 mm) 14 27.2 41 54 67.6 81.2 96 112 When tested to destruction. Maximum load = 65 kN; load at fracture = 50 kN, diameter at fracture = 7.5 mm, total extension on gauge length = 17 mm. Find young's modulus, specific modulus, ultimate tensile stress, breaking stress, true stress at fracture, limit of proportionality, percentage elongation, percentage reduction in area. The relative density of the steel is 7.8. Draw the straight line graph. Answer: breaking stress,true stress at fracture and limit of proportionality.
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