# Question 13.7: A beam having the cross-section shown in Figure 13.22(a) is ...

A beam having the cross-section shown in Figure 13.22(a) is subjected to a bending moment. Calculate the largest permissible value of the bending moment, if the maximum bending stress is not to exceed 100 MPa.

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Question: 13.9

## A rolled steel channel is used as a simply supported beam as a purlin in a roof as shown in Figure 13.25. If the slope of the roof is 1:2 and the span of the purlin is 4.0 m, calculate the maximum tensile and compressive stresses in the beam caused by a uniformly distributed loading (vertical) of ...

We know for simply supported beam under uniformly ...
Question: 13.10

## An extruded bar of aluminium alloy has the cross-section as shown in Figure 13.26. About 2.10 m length of this bar is used as a simple beam on a span of 2.0 m. A concentrated load 5.0 kN is applied at midlength of the span. Calculate the stresses (both maximum tensile and compressive) for the beam. ...

Let us divide our calculation in two phases – in t...
Question: 13.8

## A bending moment Mo is applied as shown in a rolled-steel beam, the section details of which are given in Figure 13.24. The web of the section forms an angle θ with the vertical. If σo be the maximum bending stress developed in the beam, then calculate the angle θ for which the maximum flexural ...

Clearly from the given figure, we get  \bar...
Question: 13.1

Question: 13.2

## A beam of a semi-circular cross-section of radius r is subjected to a bending moment M as shown in Figure 13.12. Calculate the maximum bending stress that is developed in the beam. ...

For the given beam section, we get  M_y=-M ...
Question: 13.3

## A beam with the section shown in Figure 13.14(a) is subjected to bending. Calculate the maximum tensile and compressive stresses in the beam and determine the orientation of the neutral axis. ...

From Figure 13.14(b), we can calculate the centroi...
Question: 13.4

## A steel-rolled section shown in Figure 13.16 is used as a cantilever beam of length 2.0 m. For the loading, calculate the maximum flexural stress developed in the section. ...

The section is antisymmetric with C being its cent...
Question: 13.5