Calculate the internal pressure, Mechanical Engineering

Assignment Help:

A pressure vessel is to be treated to generate compressive residual stresses on it inner surface. This involves increasing the pressure until taking 75% of the wall thickness goes into the plastic range. The external diameter of the vessel is 250mm and the internal diameter is 120mm, so that it must be regarded as a thick cylinder. The yield stress of the material is approximately 400MPa.

(a) Calculate the internal pressure required

(i) to cause first yield

(ii) to cause yield one third of the way through the wall thickness

(iii) to cause yield all the way across the wall

(b) Using your answers from part (a), sketch a curve of internal pressure versus radius of yielded zone boundary for the cylinder. Comment on the factor of safety against plastic collapse associated with the target amount of yield, taking into account the assumptions inherent in the calculations.


Related Discussions:- Calculate the internal pressure

Write importance of molliers diagram, Describe the key terms i. Write t...

Describe the key terms i. Write two differences between boiler and turbine. ii. Compare the rankine cycle with carnot cycle in terms of efficiency and work ratio iii.

Oil seal found still leaking-stator plate oil seal complaint, After trial i...

After trial if oil seal found still leaking: Dismantle engine and check crank shaft for run out which should not be more than 0.10 mm.

Determine steady state error, Derive mathematical equation for the time res...

Derive mathematical equation for the time response of a first order system subjected to ramp input. Draw the response curve and determine steady state error. Give some examples of

calculate the arc-belt length-distance and ratio , A powered metal-working...

A powered metal-working crank press (a generic press is shown at the end) has been designed to be capable of punching blanks from mild steel sheet up to 3 mm thick. 1. the ultim

Plot the root locus diagram for a system, Plot the root locus diagram for a...

Plot the root locus diagram for a system whose open loop transfer function is Evaluate the range of values for K for system to be stable.

Hi, what is Next Generation Manufacturing Strategy?

what is Next Generation Manufacturing Strategy?

Noise attenuation in ventilating, Indicate size, capacity and noise reducin...

Indicate size, capacity and noise reducing characteristics of all silencers on plans, including silencers for vane-axial fans. Indicate all acoustical lining on drawings, genera

Steps for F-test, Steps for F-test The Steps followed in the F-Test are...

Steps for F-test The Steps followed in the F-Test are as follows: (A) State the hypothesis: Ho: Relationship between Y and all Xs is not significant. HA: Relationship bet

Assigment.., Describe the internal structure, bonding of atoms and molecule...

Describe the internal structure, bonding of atoms and molecules and to understand the mechanical properties of materials. Comprehensive understanding of properties of materials, at

Find the diameter of drawn tubing , Find the diameter of drawn tubing ...

Find the diameter of drawn tubing (e = 0.0015 mm) to transport 0.002 m 3 /s of 20 o C water over 400 m length so that the head loss does not exceed 30m by using (

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