4-23. The steel bar has the original dimensions shown in the figure. If it is subjected to an axial load of 50 kN, determine the change in its length and its new cross-sectional dimensions at section a-a. Est = 200 GPa, Ust = 0.29.

4-23. The steel bar has the original dimensions shown in the figure. If it is subjected to an axial load of 50 kN, determine the change in its length and its new cross-sectional dimensions at section a-a. Est = 200 GPa, Ust = 0.29.

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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Planar Stresses

Question

please draw the normal force diagram along the bar and solve for everything that is asking in the picture.

4-23. The steel bar has the original dimensions shown in the figure. If it
is subjected to an axial load of 50 kN, determine the change in its length
and its new cross-sectional dimensions at section a-a. Est = 200 GPa,
Ust =
: 0.29.
Prob. 4-23
50 kN
Al
200 mm
B
350 mm
-60 mm
-20 mm
-20 mm
50 mm
200 mm
20 mm
50 kN

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Step 1: Introduce the problem statement

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Step 2: Compute normal stress in bar AD

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Step 3: Compute change in length

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Step 4: Compute change in width of bar BC

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Step 5: Determine change in area at section AA

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