- #1
a_hargy
- 16
- 0
Homework Statement
The inner diameter of a spherical gas container is 5m, has a wall thickness of 24mm and it is made of steel for which E=200GPa and v=0.29. Knowing the gauge presure in the container is increased from zero to 1.8MPA determine:
a) The maximum normal stress in the container,
b) The increase in the diameter of the container
Homework Equations
The Attempt at a Solution
a) I used the equation stress = pr/2t and got an result of 187.5MPa. Does this seem correct?
b) Its this part I am stuck on. I cannot find an equation for calculating the change in diameter or circumference of a spherical container. Can anyone point me in the direction of some reading material or post some up here? http://ocw.mit.edu/courses/materials-science-and-engineering/3-11-mechanics-of-materials-fall-1999/modules/pv.pdf" is the best I could find and it seems to only show the chance in circumference of a pipe.
Thanks in advance guys.
Adam
Last edited by a moderator: