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5: Three bars of varying cross section are connected to each other and is subjected to...

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Civil Engineering

5: Three bars of varying cross section are connectedto each other and is subjected to an axial
force of 50 kN as shown in figure. The dimensions of the two outerbars are 40 mm x 40 mm and
length of the outer bars are measured to be the same. The middlebar is having circular cross
section and the length of the middle bar is 3 times more than thatof the two outer bars. Stress in
the middle portion was observed to be 180 N/mm2 and the totalextension of three bars is equal to
7.534 mm. Recommend a suitable value for the diameter of the middlebar and length of all three
sections, if the modulus of elasticity of the material is 80 x 105N/cm2?
If all the three bars are made up of the same material and havingmodulus of rigidity of the
material equal to 320 tonnes/cm2, what will be the changes inlateral dimensions for all three
bars? Conclude the relationship between lateral strain andlongitudinal strain based on your
findings.

Answer & Explanation Solved by verified expert
4.1 Ratings (701 Votes)
Since the figure is not provided    See Answer
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