8-7. A boiler is constructed of 8-mm thick steel plates that are fastened together at their ends using a butt joint consisting of two 8-mm cover plates and rivets having a diameter of 10 mm and spaced 50 mm apart as shown. If the steam pressure in the boiler is 1.35 MPa, determine ( a) the circumferential stress in the boiler's plate apart from the seam, ( b) the circumferential stress in the outer cover plate along the rivet line a-a, and ( c) the shear stress in the rivets. | |
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