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Unit I

The document discusses curved beams and assignments involving determining load capacities, stress distributions, and dimensions of curved beam components given various geometric properties and loading conditions. Figures are provided showing the curved beam components described in each assignment question.

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jeevan prasad
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394 views2 pages

Unit I

The document discusses curved beams and assignments involving determining load capacities, stress distributions, and dimensions of curved beam components given various geometric properties and loading conditions. Figures are provided showing the curved beam components described in each assignment question.

Uploaded by

jeevan prasad
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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UNIT-I CURVED BEAMS

ASSIGNMENT QUESTIONS

1. A crane hook having an approximate 3. A C frame having T-cross section is shown


trapezoidal cross-section is shown in Figure. in fig. Find the maximum stress induced in
It is made of plain carbon steel 45C8 (Syt = the frame for 50 kN load capacity. If
380 N/mm2) and the factor of safety is 3.5.
material has St = 55 MN/m2, is it safe?
Determine the load carrying capacity of the
hook.

Figure 3
Figure 1 4. A curved link of the mechanism made from
2. A crane hook is shown in figure. Plot the a round steel bar is shown in Fig. The
distribution of stress across section A-A of material of the link is plain carbon steel
the crane hook, consider the cross section as 30C8 (Syt = 400 N/mm2) and the factor of
rectangular with thickness as 20 mm and safety is 3.5. Determine the dimensions of
take load P of 20 kN. the link.

Figure 4
Figure 2
7. An open S link is made from a φ30 mm rod
as shown in figure to carry a load of 500 N.
5. A utility hook was formed from a round rod Find the maximum tensile and shear
of diameter d = 20 mm into the geometry stresses.
shown in the figure. What are the stresses at
the inner and outer surfaces at section A–A if
F = 4 kN, L = 250 mm, and Di = 75 mm?

Figure 7
Figure 5
8. An offset bar is loaded as shown in figure.
The weight of the bar can be neglected.
6. The steel eyebolt shown in the figure is
loaded with a force F = 300 N. The bolt is What is the maximum offset (dimension X),
formed from wire of diameter d= 6 mm to a if the allowable stress in tension is limited to
radius Ri= 10 mm in the eye end at the 55 MPa?
shank. Estimate the stresses at the inner and
outer surfaces at section A–A.

Figure 8
Figure 6

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