Q2. Calculate the maximum bending stress developed. Is it safely designed (Fb =30 ksi?4"W=1%PT.Beam cross section12!41

Answered: Q2. Calculate the maximum bending…

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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Q2. Calculate the maximum bending stress developed. Is it safely designed (Fb =
30 ksi?
4"
W=1%PT.
Beam cross section
12!
41

Expert Solution

Step 1

The free body diagram of the beam is as follows.

Step 2

Balance the forces in the horizontal direction.

Balance the forces in the vertical direction.

Take the equilibrium moment about point C as 0.

Substitute the value of R_B in equation 1.

Step 3

Calculate the shear forces at all points of the beam.

Draw the shear force diagram.

Step 4

From B to C, the sign of the force is changing. The point where it meets the axis is called the point of contraflexure. Since the shear force diagram is symmetric about the point of contraflexure, it will be located at half of the distance BC from point B.

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