Answered: The steel bar is subjected to three…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The steel bar is subjected to three forces as shown in Figure Q2(a). One vertical force 40 kN and two horizontal forces 29 kN and 170 kN are applied at point D and E. The length of steel bar is 320 mm. (a) Based on three forces applied to the bar shown, calculate the normal and shear stress at point a, b, and c.(b) Assuming that the 29 kN force is moved, analyses the normal and shear stress at point a. Is it any changes in normal stress at point a compare with Question 2(a)? Justify your answer.(c) Suppose that you are requested to design steel bar with the cross section as shown in Figure Q2(b). Using similar forces acting on the steel bar as shown in Figure Q2(a), analyses the normal and shear stress at point a, b and c. It is any changes in shear stress at point c compare with Question 2(a)? Justify your answer.

60mm
70mm
15mm
15mm,
40KN
30mm
190mm
60mm
S0mm
25mm
E
29KN
170KN
Figure Q2(a): The steel bar
|Rajah Q2(a): Bar keluli]
60mm
10mm
ISm
15m
10mm
50mm
Figure Q2(b): The new cross section for steel bar.
IRajah Q2(b): Keratan rentas baru bagi bar keluli.)

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