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PROBLEM #3 (50 points) e shows a portion of a high-pressure cyindrical boliler accumulator havwin plate is affixed to the flat head of the cylinder using a number of bolts of M 16 x 2 coorso (property class The maximum total pressure load acting on the end plate is 144 kN. Twelve (12) bolts ar pressure load fluctuates between zero and its maximum value. Clamped parts have a times the bolt stiffness ko. The connection is permanent Using the modified Goodman failure criterion (referred to as the Goodman failure eries, grade 5.8 rolled threads. The fully modified endurance limit of the bolts is 100 MPa. criterion) load. (35 points) (a) (b) Calculate the factor of safety of the bolts against fatigue failure with bolt pre Calculate the factor of safety of the bolts against fatigue failure without bolt Hint: For part (b), you may need to use equation 6-46 on page 314) Steel bolt End plate Cylinder
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Poo blem noる End Rlade steel bodt 1 ~4h ~~..load :-A- Mon * ,39, 683 t 4q-735. Sut se, Sa 1o9 o0 Kp x14-4-

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