Answer:
ratio = 1
Step-by-step explanation:
Given data :
mean diameter ( D ) = 2m
wall thickness( t ) = 100 mm
internal pressure ( P ) = 10 MPa
where : σ1 = pd/4t = ( 10*2000 ) / ( 4 * 100 ) = 50 MPa
also ; σ2 = 50 MPa
next calculate the Von-mises stress
attached below is the remaining part of the solution
next calculate the maximum stress
attached below
hence ratio of Von-mises stress over maximum shear stress =
= 50 / (2*25 ) = 1