engineering recuitment NHPC JE & THDC JE 2023 Mock Test Strength of Materials Simple Stress and Strain
A prismatic bar of a square cross section of area (A) is axially loaded with a compressive load of P kN. Determine the normal stress acting on an element which makes 30° inclination with the vertical plane.
1
\(\frac{P}{A}\)
2
\(\frac{{\sqrt 3 \;P\;}}{{4\;A}}\)
3
\(\frac{{3\;P}}{{4\;A}}\)
4
\(\frac{P}{{4\;A}}\)