Determine the maximum pressure applied inside the shell, Mechanical Engineering

Assignment Help:

Determine the maximum pressure applied inside the shell:

A thin spherical shell of 1.5 m diameter is built by joining steel plates of 8 mm thickness by riveting. The efficiency of joint is given to be 75%. Determine the maximum pressure that may be applied inside the shell. Take permissible tensile stress as 140 N/mm2.

The efficiency of the joints influences the stresses induced. For a seamless shell, that means a shell having not joints, efficiency is 100%. For decreased efficiency, stresses are enhanced. Therefore, if η is the efficiency of the joints in the shell, then the hoop stress is provided by σh  = pd/4t η

Solution

In this example, this is given

Diameter, d = 1.5 m = 1500 mm.

Thickness, t = 8 mm.

Permissible hoop stress = 140 N/mm2.

Efficiency = 75% = 0.75.

 Therefore, we have

140 = p × 1500 / 4 × 8 × 0.75

∴ p = 2.24 N/mm2


Related Discussions:- Determine the maximum pressure applied inside the shell

Manufacturing technology, Details of rolling process,Different rolling meth...

Details of rolling process,Different rolling methods,

Test, test test teste teste teste tester

test test teste teste teste tester

Find the minimum weight to keep equilibrium, Find the minimum weight to kee...

Find the minimum weight to keep equilibrium: A belt supports the two weights W 1 an d W 2 over a pulley as shown in the figure given below. If W 1 = 1000N, fi

Workshop, importance of workshop in mechanical

importance of workshop in mechanical

Determine the value of registers, The ARM microprocessor has 32 bit instruc...

The ARM microprocessor has 32 bit instructions and 32 bit registers. Explain why this means that immediate addressing cannot be used to load a register with a 32 bit constant. T

Maximum stress in each material, The maximum stress in each material: ...

The maximum stress in each material: A copper tube of external diameter 60 mm and internal diameter 40 mm is closely fitted to a steel rod of 40 mm diameter to compose a compo

Simply supported beam, Simply Supported Beam: Simply Supported Beam: ...

Simply Supported Beam: Simply Supported Beam: The beam on which both ends are supported, either by point load or hinged or roller support.

Principal stress and principal plane, Use the graphics and the equation to ...

Use the graphics and the equation to define the term principal stress and principal planes.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd