Problem 1: (50 points)In Avengers 2, Captain America's improvedshield is made from unobtainium, a newmaterial that will soon be available in a storenear you. Unobtainium has the normal stress-strain diagram shown. The proportional limit,the elastic limit and the yield point areidentical in this material.o [MPa]2001175150125100Fig.1 Normal stress-strain75502500. 0.05 0.1 0.15 0.2 0.25Unobtainium has a Poisson's ratio of 0.3.a. [6pts] Identify the yield point oy, the ultimate stress ou and the fracturestress of. Include units.c. [25pts] A bar of unobtainium has a length of1.5 m, a width of 100mm and a height of 50mm, as shown. The cross-sectional area is50mm 100mm = 5 x 10-³m². The bar issubjected to an axial force of 375 kN.Find the normal stress in a cross-section of the bar.b. [5pts] How do you find Young's modulus from this graph? Find its value with units.whesta fins dus al hossP = 375 KN1.5 m0.350 mm100 mm& [mm/mm]Is the material within its linear-elastic region? Yes / NoCalculate the longitudinal normal strain under this loading AND indicate it in the stress-straindiagram above.P = 375 KN

Problem 1: (50 points) In Avengers 2, Captain America's improved shield is made from unobtainium, a new material that will soon be available in a store near you. Unobtainium has the normal stress- strain diagram shown. The proportional limit, the elastic limit and the yield point are identical in this material. o [MPa] 200 175 150 125 100 75 50 25 Normal 0 0. 0.05 0.1 Unobtainium has a Poisson's ratio of 0.3. a. [6pts] Identify the yield point oy, the ultimate stress ou and the fracture stress of. Include units. P = 375 KN c. [25pts] A bar of unobtainium has a length of 1.5 m, a width of 100mm and a height of 50 mm, as shown. The cross-sectional area is 50mm * 100mm = 5 x 10-³m². The bar is subjected to an axial force of 375 kN. Find the normal stress in a cross-section of the bar. b. [5pts] How do you find Young's modulus from this graph? Find its value with units. 0.15 0.2 0.25 0.3² [mm/mm] 1.5 m. 50 mm 100 mm Is the material within its linear-elastic region? Yes / No Calculate the longitudinal normal strain under this loading AND indicate it in the stress-strain diagram above. P=375 KN Z

Problem 1: (50 points) In Avengers 2, Captain America's improved shield is made from unobtainium, a new material that will soon be available in a store near you. Unobtainium has the normal stress- strain diagram shown. The proportional limit, the elastic limit and the yield point are identical in this material. o [MPa] 200 175 150 125 100 75 50 25 Normal 0 0. 0.05 0.1 Unobtainium has a Poisson's ratio of 0.3. a. [6pts] Identify the yield point oy, the ultimate stress ou and the fracture stress of. Include units. P = 375 KN c. [25pts] A bar of unobtainium has a length of 1.5 m, a width of 100mm and a height of 50 mm, as shown. The cross-sectional area is 50mm * 100mm = 5 x 10-³m². The bar is subjected to an axial force of 375 kN. Find the normal stress in a cross-section of the bar. b. [5pts] How do you find Young's modulus from this graph? Find its value with units. 0.15 0.2 0.25 0.3² [mm/mm] 1.5 m. 50 mm 100 mm Is the material within its linear-elastic region? Yes / No Calculate the longitudinal normal strain under this loading AND indicate it in the stress-strain diagram above. P=375 KN Z

Elements Of Electromagnetics

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Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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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

Problem 1: (50 points)
In Avengers 2, Captain America's improved
shield is made from unobtainium, a new
material that will soon be available in a store
near you. Unobtainium has the normal stress-
strain diagram shown. The proportional limit,
the elastic limit and the yield point are
identical in this material.
o [MPa]
2001
175
150
125
100
Fig.1 Normal stress-strain
75
50
25
0
0. 0.05 0.1 0.15 0.2 0.25
Unobtainium has a Poisson's ratio of 0.3.
a. [6pts] Identify the yield point oy, the ultimate stress ou and the fracture
stress of. Include units.
c. [25pts] A bar of unobtainium has a length of
1.5 m, a width of 100mm and a height of 50
mm, as shown. The cross-sectional area is
50mm 100mm = 5 x 10-³m². The bar is
subjected to an axial force of 375 kN.
Find the normal stress in a cross-section of the bar.
b. [5pts] How do you find Young's modulus from this graph? Find its value with units.
whesta fins dus al hoss
P = 375 KN
1.5 m
0.3
50 mm
100 mm
& [mm/mm]
Is the material within its linear-elastic region? Yes / No
Calculate the longitudinal normal strain under this loading AND indicate it in the stress-strain
diagram above.
P = 375 KN

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