Question

Q.1. Find the maximum bending and maximum shear stress for the following beam. The cross section is
the rectangle with dimensions 100*200 mm. Also show the stress distribution on the cross section
P=26.*2KN
1m
1m
1m​

Answer 1

Answer:

Explanation:

Bending Stress

a. Simplifying assumptions

The stresses caused by the bending moment are known as

bending stress, or flexure stresses. The relationship between

these stresses and the bending moment is called the flexure

formula.

In deriving the

flexure formula,

make the following

assumptions:

The beam has an

axial plane of

symmetry, which we

take to be the xyplane (see Fig. 5.1). Figure 5.1 Symmetrical beam with loads lying in the plane of symmetry.  

The applied loads (such as F1,F2 and F3 in Fig.5.1) lie in the

plane of the symmetry and are perpendicular to the axis of the

beam (the x-axis).The axis of the beam bends but does not

stretch ( the axis lies some where in the plane of symmetry; its

location will be determined later).

Plane sections of

the beam remain

plane (do not warp

) and perpendicular

to the deformed

axis of the beam.

Change in the

cross-sectional

dimensions of the

beam are

negligible.

Answer 2

Answer:

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Explanation:

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