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# Example 98 A pressure vessel has an internal diameter of 1 m and is to be subjected to an internal pressure of 275 Nmm2 above the atmospheric pressure Considering it as a thin cylinder and

Example 9.8. A pressure vessel has an internal
diameter of 1 m and is to be subjected to an internal pressure
of 2.75 N/mm2 above the atmospheric pressure. Considering
it as a thin cylinder and assuming efficiency of its riveted
joint to be 79%, calculate the plate thickness if the tensile
stress in the material is not to exceed 88 MPa.
Design a longitudinal double riveted double strap butt
joint with equal straps for this vessel. The pitch of the rivets
in the outer row is to be double the pitch in the inner row
and zig-zag riveting is proposed. The maximum allowable
shear stress in the rivets is 64 MPa. You may assume that
the rivets in double shear are 1.8 times stronger than in
single shear and the joint does not fail by crushing.
Make a sketch of the joint showing all calculated
values. Calculate the efficiency of the join

Jun 24 2020 View more View Less