![Since the circular saw blade is rotating idle, it is equivalent to a rotating ring. Given, poissons ratio, V = 0, 292 densit](//img.homeworklib.com/questions/44d5e730-bdc4-11eb-98e6-5de4a770dca1.png?x-oss-process=image/resize,w_560)
![is maximum at 8= ria 0-375 in. + Coemar = $w? (***)( *** *** vero ***) = sco(st) (*** ***- (1988) **) = (037) (753-982)* (31](//img.homeworklib.com/questions/457daf90-bdc4-11eb-b999-8fb83267e2ff.png?x-oss-process=image/resize,w_560)
![as ( ) ( - 20) = 0 .9 ;: (r Y Yo i ra160,375in.) (Sin.) = 1.3693 in. 2 max = sw² / ritro2-8,2 ro2 - Viro - Ply So, (6) max =](//img.homeworklib.com/questions/46151d80-bdc4-11eb-b562-3f8426d9c912.png?x-oss-process=image/resize,w_560)
![a) Maximum radial stress in the blade, (Or max = 3655.757 psi b) maximum tangential Stress in the blade (1) max = 8555.5676 P](//img.homeworklib.com/questions/46a0a110-bdc4-11eb-8def-c35a11b8db02.png?x-oss-process=image/resize,w_560)
Since the circular saw blade is rotating idle, it is equivalent to a rotating ring. Given, poisson's ratio, V = 0, 292 density of the ring material, s = 0,282 lbf /in. 3 angular velocity of the ring, w: 26 (7200) rad's 60 W75 3,9822 vad/s. internal radius of the ring, ris ( 311 in= 0.375 in. outer radius of the ring, 10 = 1/10) in. = 5 in. The tangen tial stress in rotating ring is given by Of = $w? ( 34*) (****+ **** - (**)2) where r is the boint from the center of the ring where stress is to be determined.
is maximum at 8= ria 0-375 in. + Coemar = $w? (***)( *** *** vero ***) = sco(st) (*** ***- (1988) **) = (037) (753-982)* (31 292) (0-360°+ 2(0)2 386 1+30-292) 3+ (0-292) (0-375) $) = (170.9046) (50-06049) 8555.56 76 psi tmax = 855 5. 5676 psi Now, Radial stress is given by G = fw( 23) (ri* ***-) to be maximum,
as ( ) ( - 20) = 0 .9 ;: (r Y Yo i ra160,375in.) (Sin.) = 1.3693 in. 2 max = sw² / ritro2-8,2 ro2 - Viro - Ply So, (6) max = $w(9") (uitzol - *** - 1070) = $w (270) (x*+*o* - 24270) = $w?( 3+ v) (46-70) - (0-282) (52-3623° ( 2191292) (5- 01375) ? 386 3 3655,757 psi. (6) max = 3655.757 psi .
a) Maximum radial stress in the blade, (Or max = 3655.757 psi b) maximum tangential Stress in the blade (1) max = 8555.5676 Psi c) Since, ot and so are both positive ;, Tmax = ( Pumax [: @t)max> (6) mar] = (8555-5676) psi 2 4277-7838 PSL