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Question: 120 a beam subjected to axial loading will experience an...

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1-20 A beam subjected to axial loading will experience an axial stress, ơ If, in addition, the beam is subjected to a bending load, a bending stress, Ơb, will also occur at the outer fibers of the beam. The maximum stress at the outer fibers of the beam wil be maxab Assume that ơa and ơb are independent and σ,-90 MPa, σσα-8.4 MPa, σ,-383 MPa, σσ,-22.3 MPa. The rod is made of a steel with Sy 553 MPa and ôs,-42.7 MPa. Assuming the strength and load have normal distributions, determine the design factor and the reliability guarding against yielding.

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