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A structure is subjected to a three-stage block loading (see Table below). Block A Om (MPa) 110 40 80 O (MPa) 75 120 120
Posted: Fri Apr 29, 2022 10:01 am
by answerhappygod
- A Structure Is Subjected To A Three Stage Block Loading See Table Below Block A Om Mpa 110 40 80 O Mpa 75 120 120 1 (53.03 KiB) Viewed 22 times
A structure is subjected to a three-stage block loading (see Table below). Block A Om (MPa) 110 40 80 O (MPa) 75 120 120 Cycles (days) 300 10 ng B с *500 cycles / day Using Miner's rule: a) Determine the fatigue life of the structure after blocks A, B, and Care applied. b) Determine, approximately, Oą for block C, if the fatigue life should exceed 2 years. Miner's rule: ni N 12 N2 = 1 Basquin Equation: ON = C, with C-400 MPa and a=0.11. Goodman Equation: σα of om OB Og =400 MPa +