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Q9. A thin cylindrical pressure vessel is 1.25 m diameter with plate thickness 42 mm. The circumferential seams are vee welded at an angle of 60° as shown in Fig Q9. During operation the vessel is pressurized to 35 bar.

Calculate EACH of the following:

(a) the circumferential stress within the vessel. (3)

(b) the longitudinal stress within the vessel. (3)

(C) the normal tensile stress at the weld seam. (5)

(d) the shear stress at the weld seam. (5)