Question

(15 marks) Question Four The fully machined steel connecting link is made from a steel with an ultimate tensile strength of 700MPa. The holes at either end of the link are to carry pin connectors. The link is 10mm thick The link is axially loaded, with a fully reversed load. Assuming infinite life and a safety factor of 2, estimate the maximum load that may be applied to the link. Note that as axially loaded members will only need to be corrected for surface finish, by using the provided information. Note also that a fatigue stress concentration factor will need to be appled, as a consequence of the pin holes generally not sensitive to size, the endurance limit are 7.5mm 15mm 7.5mm

Answer 1

yewen Loaal is So fally seveseio 2 Sut - 700 H Pa t - 10mm O.SK70D =350 Se = anial loadluig leadig faites Seufaree faotas Hachuea Steel CSut) A C2 -ס26יf =4.S (7D)0-26 4.S h-0.265 C2 O79 famatese) Mo Sufomatin stices loncenliationaa e3=Yeuapeiatos faetor Reijabliy NO C Ke yheoui tia! for cO.S d 2 XVS Ke = 2.15 NHCH Seus about Smfoiwation AS NO Asturecing Kf 10-1(2-15-1) KA fo92 Coneeteal Endewanee huut Se

Se= /.92 Se t00080 Mpa Bnfenite Life altesmale Strees Jo have lees thau E 9ual lo uelusauee limit Mewt be Se 2 S0.40 MPa 9 Eman S0.40 w-d)t (w-d)f9504 (5-F-5)10 x So40 S0.40 Fran Fuax Fman=3780 27 N KN Fuau =3.780