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  • Consider a long steel bar under a tensile force F acting at the edges along the length of the bar. Consider a plane making an angle <img alt="\Theta" src="https://entrancecorner.oncodecog

Consider a long steel bar under a tensile force F acting at the edges along the length of the bar. Consider a plane making an angle \Theta with the length. For what angle is the tensile stress is maximum ?

Option: 1

30°


Option: 2

45°


Option: 3

60°


Option: 4

90°


Answers (1)

best_answer

If A is the area of cross-section of the bar,then

f=\frac{Fsin\Theta }{(\frac{A}{sin\Theta })}=\frac{F}{A}sin^{2}\Theta

f will be maximum for  \Theta=90°

Posted by

shivangi.bhatnagar

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