1 - A tensile test is carried out on a specimen of mild steel of gauge length40 mm and diameter 7.42 mm. The results are:Load (kN)101725303437.5 38.536Extension (mm) 0 0.05 0.08 0.11 0.140.20 0.40 0.60 0.90At fracture the final length of the specimen is 40.90 mm.Plot the load/ extension graph and determine(a) The modulus of elasticity for mild steel,(b) The yield stress,(c) The ultimate tensile strength,(d) The percentage elongation2 - An aluminum alloy specimen of gauge length 75 mm and of diameter11.28 mm was subjected to a tensile test, with these results:Load (kN)2.06.511.513.616.018.019.020.519.0Extension (mm) 0 0.012 0.039 0.069 0.080 0.107 0.133 0.158 0.225 0.310The specimen fractured at a load of 19.0 kN.Determine(a) the modulus of elasticity of the alloy,(b) The percentage elongation.(c) The ductility in term of reduction of area(d) Fracture stress(e) Tensile strength

1) Gage length of the specimen, L=40 mm Initial diameter of the specimen, d= 7.42 mm At fracture the…

Answered: 1 - A tensile test is carried out on a…

1 - A tensile test is carried out on a specimen of mild steel of gauge length 40 mm and diameter 7.42 mm. The results are:

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Concept explainers

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

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1 - A tensile test is carried out on a specimen of mild steel of gauge length
40 mm and diameter 7.42 mm. The results are:
Load (kN)
10
17
25
30
34
37.5 38.5
36
Extension (mm) 0 0.05 0.08 0.11 0.14
0.20 0.40 0.60 0.90
At fracture the final length of the specimen is 40.90 mm.
Plot the load/ extension graph and determine
(a) The modulus of elasticity for mild steel,
(b) The yield stress,
(c) The ultimate tensile strength,
(d) The percentage elongation
2 - An aluminum alloy specimen of gauge length 75 mm and of diameter
11.28 mm was subjected to a tensile test, with these results:
Load (kN)
2.0
6.5
11.5
13.6
16.0
18.0
19.0
20.5
19.0
Extension (mm) 0 0.012 0.039 0.069 0.080 0.107 0.133 0.158 0.225 0.310
The specimen fractured at a load of 19.0 kN.
Determine
(a) the modulus of elasticity of the alloy,
(b) The percentage elongation.
(c) The ductility in term of reduction of area
(d) Fracture stress
(e) Tensile strength

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