Answer:
The maximum pressure= 230.76 M Pa
Step-by-step explanation:
Given that
Outer diameter=300 mm
Inner diameter=200 mm
Condition for thick cylinder:
If thickness of cylinder is greater than 1/20 times of internal diameter,Then it is called thick cylinder.
We know that when thick cylinder is subjected to external pressure ,the hoop stress given as

Now by putting values


For safe design

So 2.6 P <600
P<230.76 MPa
So the maximum pressure= 230.76 M Pa