Structural Analysis
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Pressure and Stress
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In terms of the stress-at-a-point analysis, define what is principal stress?

Expert Solution
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- Principal stress is defined as the maximum and minimum normal stress which may act on a point in loaded body.

- The plane of principal stress carry zero shear stress.

- if σx and σy are normal stress on vertical and horizontal plane respectively and this plane is accompanied by

   shear stress τ, then principal stress are given by equation :

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