Info

Giving residual stresses at the bore of:

Working stresses are then obtained by the addition of elastic loading stresses due to an internal working pressure of 240 MN/m2

i.e. from part (a) o„ = -240 MN/m2, om = 298.3 MN/m2

final working stresses are:

orrw = 0 - 240 = -240 MN/m2 <jgew = 298.3 - 454.3 = -156 MN/m2. .•. New safety factor according to Tresca theory

0 0

Post a comment