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

Wind induced vibration of vertical vessels, Q. Wind Induced Vibration of Ve...

Q. Wind Induced Vibration of Vertical Vessels? Vertical vessels having a height-to-diameter ratio (h/D) (does not include insulation thickness but does include skirt height) gr

Determine the final temperature in piston – cylinder, Determine the final t...

Determine the final temperature in piston – cylinder: One Kg of steam at 1.5MPa and 400ºC in a piston - cylinder device is cooled at constant pressure. Determine the final te

Gudgeon pin-basic components of engine , Gudgeon Pin: It forms the link b...

Gudgeon Pin: It forms the link between the small end of the connecting rod and the piston. It is a small pin as shown in Figure 2.13. Figure : Gudgeon Pin

Find out the angle of force - center of wheel, Find out the angle of force:...

Find out the angle of force: Q: A uniform wheel having 60 cm diameter weighing 1000 N rests against rectangular obstacle   15 cm high. Find least force required which when ac

Matlab program, write a matlab program to generate shear force diagram

write a matlab program to generate shear force diagram

Flux feeding & recovery system, FLUX FEEDING & RECOVERY SYSTEM The flux i...

FLUX FEEDING & RECOVERY SYSTEM The flux is fed by gravity from the flux delivery hopper mounted on the welding head through a tube into the welding zone. Flux feeding is normally

Define the components in the step standard, Define the components in the ST...

Define the components in the STEP standard There are many components in the STEP standard. (i) The first component discusses the purpose of the standard. It contains :  (

Theory of constraints, Theory of Constraints: Goldratt's theory of con...

Theory of Constraints: Goldratt's theory of constraint has attracted the attention of several practioners in the industry. His concept of goal, constraint, and throughput, cri

Determine net work done, Determine net work done: 5 m 3   of air ...

Determine net work done: 5 m 3   of air at 2bar, 27 0 C is compressed to 6bar pressure following PV 1. 3   = constant. It is expanded subsequently adiabaticall

Cam, advanced cam profile synthesis

advanced cam profile synthesis

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