7. The following data were collected from a 20-mm diameter test specimen ductile cast iron (lo= 40.00 mm). After fracture, the total length was 47.42 and the diameter was 18.35 mm. Load (N) AL (mm) 0.0000 0.0185 25,000 50,000 75,000 90,000 105,000 120,000 131,000 125,000 0.0370 0.0555 0.20 0.60 1.56 4.00 (maximum load) 7.52 (fracture) а) Plot the data as engineering stress versus engineering strain. b) Compute the modulus of elasticity. c) Determine the yield strength at a strain offset of 0.002.

7. The following data were collected from a 20-mm diameter test specimen ductile cast iron (lo= 40.00 mm). After fracture, the total length was 47.42 and the diameter was 18.35 mm. Load (N) AL (mm) 0.0000 0.0185 25,000 50,000 75,000 90,000 105,000 120,000 131,000 125,000 0.0370 0.0555 0.20 0.60 1.56 4.00 (maximum load) 7.52 (fracture) а) Plot the data as engineering stress versus engineering strain. b) Compute the modulus of elasticity. c) Determine the yield strength at a strain offset of 0.002.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.

Question

7. The following data were collected from a 20-mm diameter test specimen of a
ductile cast iron (lo = 40.00 mm). After fracture, the total length was 47.42 mm
and the diameter was 18.35 mm.
Load
Al
(N)
(mm)
0.0000
25,000
0.0185
50,000
75,000
90,000
105,000
120,000
131,000
0.0370
0.0555
0.20
0.60
1.56
4.00 (maximum load)
7.52 (fracture)
125,000
a)
Plot the data as engineering stress versus engineering strain.
b)
Compute the modulus of elasticity.
c)
Determine the yield strength at a strain offset of 0.002.
d)
Determine the tensile strength of this alloy.
e)
What is the approximate ductility, in percent elongation?
f)
Compute the modulus of resilience.
g)
Compute from the data and plot true stress versus true strain diagram.

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