abs - Google Drive X ZmCZzcmSpDQWtFB?projector=1&messagePartld=0.1 Problem 4 max Google Docs in fillet In the figure shown, shaft A, made of AISI 1020 hot-rolled steel, is welded to a fixed support and is subjected to loading by equal and opposite forces F via shaft B. A theoretical stress- concentration factor K,, of 1.6 is induced in the shaft by the-in weld fillet. The length of shaft A from the fixed support to the connection at shaft B is 2 ft. The load F cycles from 150 to 500 lbf. Fanin (a) For shaft A, find the factor of safety for infinite life using the modified Goodman fatigue failure criterion. (b) Repeat part (a) using the Gerber fatigue failure criterion. marx =0.80 (fs=1+qs (kts-1) 7-in dia Shaft A = 1 + 0.80 (1.6-1)=1.48 = 500.2 =100016 fin Tmin= 150.2 1 in Heat Transfer Lab 3 - Google Dri X a = 0.190-2.51 x 160 (55) + 1.35x10" 5 (55) - 2.6710 (55) 3 1 in Heat Transfer M7 Lab 3 - Shaft B Sut = 55 Sy = 30