The Component Shown Below Is Made Of Aisi 4340

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The component shown below is made of AISI 4340 Oil Quenched at 800oC and Temper at 595oC 1 hour (…

The component shown below is made of AISI 4340 Oil Quenched at 800oC and Temper at 595oC 1 hour ( σ y 139ksi; σ ut: 147ks) tubular steel. The component, a closed end tube with an OD1.25in and ID 3/4in, is subjected to the load (see arrow) that varies between 3F and -IF Determine the force F for infinite life. Given: The component has been cold rolled, operates at room temperature and needs a reliability of 99.0%. Consider all stress concentrations equals to onc 12 in 4 in I 2 in 6 in.

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