0800CET201122003

16 Analyse the overhanging beam shown in fig:5. Draw the shear force diagram (14)

and bending moment diagram shown all salient points including point of

contraflexure.
20kN/m 10kN
A ‏سمسسے‎
‎5m 2m
Figure 5
Module 4

17 A simply supported beam AB of Sm span is carrying a uniformly distributed (14)
load of 20kN/m. The beam is made up of rectangular cross section of
dimensions 300mm x 450 mm.

i) Draw the bending stress distribution at the critical section for bending.

ii) Draw the shear stress distribution considering the critical section for
shear.

iii) Also calculate bending stress and shear stress on layer located 50mm
above the neutral axis on the cross section at the mid-point of the
beam.

iv) Assess whether the beam can safely carry the loads given the allowable
stresses in bending and shear are 8MPa and 0.75 MPa respectively.

18.a Derive the expression for strain energy due to bending deformation. (4)

‎For the simply supported beam shown in fig:6, calculate the total elastic strain (10)‏ حا

‎energy due to bending.

‎ணை, _ 2kN/m

‎Figure 6

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