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A beam subjected to bending moment undergoes...

A beam subjected to bending moment undergoes which of the following stresses?

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asked Jan 23 in Machine Design by Carter (89.5k points)

A beam subjected to bending moment undergoes which of the following stresses?

(a) Compressive

(b) Tensile

(c) Both compressive & tensile

(d) None of the mentioned

I need help with this question that came up in my coursework.

This intriguing question comes from the Modes of Failure & Stresses topic in part Design Against Static Load of Machine Design

machine design
design against static load
modes of failure & stresses

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answered Feb 2 by Chris (52.6k points)

Recommended answer is (c) Both compressive & tensile

Here's an easy explanation: The portion above the neutral axis is under compression and the portion below it is under tensile stress.

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