a) Determine the force P (in kN) required to stretch the Aluminum bar by 3mm.B) Determine the final width and thickness of the Aluminum bar. (1) A(1)LBВ(2)425 mmC1,000 mmV PA steel bar (1) and an Aluminum bar (2) are connected to a rigid angle ACD.Assuming:• Steel [E = 200 GPa] bar (1) is 4mm x 40mm x 600mm long. .• Aluminum [E = 70 GPa] bar (2) is 10mm x 40mm x 600mm long. Poisson'sratio, v = 0.35A distance L of 500mm.

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Chapter2: Loads On Structures

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Problem 1P

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Material Properties

Construction in civil engineering demands high strength, durability, and longevity. These targets can be achieved by better design and analysis, along with the correct choice of materials. Different materials have different properties and hence, they respond and performs differently under the various condition of external loadings. It is therefore a critical task of an engineer to select the right material based on the property that the material is supposed to function in real-time. When speaking about the property, there are different categories of material properties like chemical property, physical property, mechanical property, electrical property, magnetic property, thermal property, etc. These material properties form the basis of material selection in various applications.

Question

a) Determine the force P (in kN) required to stretch the Aluminum bar by 3mm.

B) Determine the final width and thickness of the Aluminum bar. (1)

A
(1)
L
B
В
(2)
425 mm
C
1,000 mm
V P
A steel bar (1) and an Aluminum bar (2) are connected to a rigid angle ACD.
Assuming:
• Steel [E = 200 GPa] bar (1) is 4mm x 40mm x 600mm long. .
• Aluminum [E = 70 GPa] bar (2) is 10mm x 40mm x 600mm long. Poisson's
ratio, v = 0.35
A distance L of 500mm.

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