T5 Computational Analysis (Refer the attached sheet). Problem 16. What is economical joint and where does it find applications? A double riveted double cover butt joint is used to connect plates 12 mm thick. Using Unwin's formula, determine the diameter of rivet, rivet value, pitch and efficiency of joint. Adopt the following stresses; Working stress in shear in power driven rivets=100 N/mm? (MPa). Working stress in bearing in power driven rivets=300 N/mm (MPa). For plates working stress in axial tension =156 N/mm?. B. AKC 21.22 mm [D 100 MPa 100 MPa 21.17 mm Problem 17. State the applications of riveted joint in modern equipment. State any four advantages of riveted joint over welded joint. Design a triple riveted lap joint, to join two plates of 6 mm thick. The allowable stresses are: o, = 80 MPa, oc = 100 MPa, and t = 60 MPa. Calculate the rivet diameter, rivet pitch, and distance between the rows of rivets. Use zig-zag riveting. State how the joint will fail. Problem 18. How is a rivet joint of uniform strength designed? A double riveted, zig-zag butt joint, in which the pitch of the rivets in the outer row is twice that in the inner rows; connects two 16 mm plates with two cover plates, each 12 mm thick. Determine the diameter of the rivets and pitch of the