Principal Stresses
The normal stresses acting on principal plane is called as ‘Principal Stresses’.
In fig. 1 σx and σy are the principal stresses. They are also denoted as σn.

This is classify in to two types,
1. Major Principal Stress (σP1)
2. Minor Principal Stress (σP2)
Principal Plane
In fig. 1 σx and σy are the principal stresses. They are also denoted as σn.

This is classify in to two types,
1. Major Principal Stress (σP1)
2. Minor Principal Stress (σP2)
Principal Plane
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