engineering recuitment TNPSC AE Civil 2024 Test series Strength of Materials Principal Stress or Strain Principle Stress
If σ1 and σ2 be the major and minor tensile stresses, then maximum value of tangential stress is equal to
1
σ2
2
σ1 - σ2
3
σ1 + σ2
4
\(\frac{{{{\rm{\sigma }}_1}{\rm{\;}} - {\rm{\;}}{{\rm{\sigma }}_2}}}{2}\)