Question

Please show all steps, sketch free-body diagram, and state assumptions.

Create a drawing of the designed cotter joint. Assume non-critical dimensions.

Design stresses are 55 MPa in tension; 40 MPa in shear and 70 MPa in crushing. Draw a neat sketch of the joint designed joint to connect two mild steel rods for a pull of 30 kN. The maximum permissible 1 a cotter [Ans. d 22 mm; d,=32 mm ; t= 14 mm ; d, =44 mm ; b=30 mm ; a 12 mm ; d = 65 mm ; c 12 mm; d40 mm; , =8 mm

Answer 1

Sol cotten spizt cnd Socket end 30 KN M8G 440 4p TT CE 4 30 (0 55 14 - 26 3

.31 d 7 3 1 sth. 33.28 1d2

t = 10 1o mm 1T +7pP) 3 28/]-4-13-0) 55 069 141 26t 3 40 33.71 mm L

2 adr 40 33.88 11.06 8 mm 30 x10 33.88) 1 696 1 +4 1- 2 40 2 (74.696- 37 88 C 9.183 / C ue ui IT

= p 1 43 39.52S P Jh. 26.35 11.3 3T m