Answered: The rigid bar is supported by a pin at…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

The rigid bar is supported by a pin at A and two metal wires,each having a diameter of 4mm.The stress-strain diagram of the steel is given in the Figure below.The lower graph is the zoomed view of the elastic deformation and yielding phases of yielding phases of the stress-strain diagram given by the upper graph.
a)Obtain the Young’s modulus of metal.What can you say about the kind of metal considering the Young modulus?If the poınt G is displaced 1.5 mm in vertical direction)

b)Determine the forces at wires EB and DC

c)the intensity of the distributed load w?

d)the final diameters of wires.(Poisson’s ratio is v=0.3)

E
D
o (MPa)
600
500
800 mm
400
A
В
300
G
200
100
- 400 mm-
- 250 mm-
- e(mm/mm)
'150 mm'
0 0.04 0.08 0.12 0.16 0.20 0.24 0.28
8 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035

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