@CT 1 @LM 6 @RM 66 @PL 55 @MT 1 @MB 1 @PN 1 @ST ,6,66,6,2,0,0,1,1,0,0,5,11,17,23,29,35,41,47,53,59,65,71,77,83,89,95,101,107,113,119,125,131,137,143,149,155,161,167,173,179,185,191,197,203,209 @LH 6 Teplota: 24.5o Tlak:102.2 kPa Vlhkost:60% @LH 3 @ST ,6,66,6,8,2,0,1,1,0,0,5,11,17,23,29,35,41,47,53,59,65,71,77,83,89,95,101,107,113,119,125,131,137,143,149,155,161,167,173,179,185,191,197,203,209 @LH 6 1.8 Stanoven modulu prunosti ve smyku pmou metodou @ST ,6,66,6,2,2,0,1,1,0,0,5,11,17,23,29,35,41,47,53,59,65,71,77,83,89,95,101,107,113,119,125,131,137,143,149,155,161,167,173,179,185,191,197,203,209  @ST ,6,66,6,2,0,0,1,1,0,0,5,11,17,23,29,35,41,47,53,59,65,71,77,83,89,95,101,107,113,119,125,131,137,143,149,155,161,167,173,179,185,191,197,203,209 Pro uren modulu prunosti ve smyku G musme urit slu F potebnou k vyvozen prun deformace ve smyku. Na ocelov drt znmho prmru d a dlky l psobme promnnou silou pomoc rznch zva hmotnosti m. Tato sla vyvozuje pes kladkov mechanismus zkroucen o hel . Pomcky: 1. mc zazen 2. dv sady zva 3. mikrometr Poadavky na men: 1. Zmit 20 krt prmr drtu 2. hel ztoen zmte pi rostoucm a klesajcm zaten Vzorec pro vpoet: 8*720 m g R l G = 2 d4  R = (3.03 0.04)*10-2m l = (491.6 0.8)*10-3m Ŀ n d/mm ( d)2/mm Ĵ 1 0.905 0.00000144 2 0.902 0.00000324 3 0.902 0.00000324 4 0.900 0.00001444 5 0.902 0.00000324 6 0.900 0.00001444 7 0.905 0.00000144 8 0.902 0.00000324 9 0.907 0.00001024 10 0.905 0.00000144 11 0.908 0.00001764 12 0.906 0.00000484 13 0.905 0.00000144 14 0.903 0.00000064 15 0.905 0.00000144 16 0.904 0.00000004 17 0.903 0.00000064 18 0.904 0.00000004 19 0.905 0.00000144 20 0.903 0.00000064 Ĵ 18.076 0.00008520 2 ( d)2  = = 0.00031567 = 0.0003 3 n(n-1) d = (0.9030 0.0003) mm Ŀ m/g m/g pro 100g ( d)2  Ĵ 0 222.5 100 397.5 175.0 12.96 20 254.5 120 425.0 170.5 0.81 40 292.0 140 456.5 164.5 47.61 60 325.0 160 501.0 176.0 21.16 80 360.0 180 531.0 171.0 0.16 Ĵ 857.0 82.70 Prmr 171.4 1.36 = (171 1)o  mg = 8.829 mg = 1909.811 (mg)2=10.971 nmg - mg 10*1909.811-8.829*857.0 a = = = -0.501 n(mg)2- (mg)2 10*10.971-(8.829)2  (mg)2 - mgmg 10.971*857.0-8.829*1909.811 b = = = n(mg)2- (mg)2 10*10.971-(8.829)2  = 174.483 = bF + a 8*720 m g R l 8*720*0.1*9.81*3.03*10-2*491.6*10-3  G = = = 2 d4  2*(0.903*10-3)4*171 = 7.500654 1010 [Nm2] dG G dG G dG G dG G = = = -4 = - dR R dl l dd d d R l d  = G = = = = R l d 0.04 0.08 0.0003 1 = 7.500654 1010  + + 16 + = 3.03 491.6 0.9030 171 = 1.09 109  0.1 1010  = = = 0.01 = 1% G 7.5 1010  Ŀ G = (7.5 0.1) 1010Nm-2  Zvr: Pesnost vsledku podle relativn chyby ve srovnn s hodnotami chyb uvedenmi ve skriptech je bاn pro fyzikln mren. Hodnota modulu prunosti ve smyku odpovd danmu materilu. Drobn nepesnosti jsou spsobeny nepesnm odetenm hodnot hlu zkroucen na hlomru, ten v kladkovm mechanismu.