An AISI-4340 steel pressure vessel of 60-mm diameter and 5-mm wall thickness contains a...

An AISI-4340 steel pressure vessel of 60-mm diameter and 5-mm wall thickness contains a 12-mm-long crack (Fig. P4.33). Calculate the pressure that will cause fracture when (a) the crack is longitudinal; (b) the crack is circumferential. Assumption:A factor of safety n = 2 and geometry factor = 1.01 are used (Table 4.2).