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The normal stress across the principal plane is known as

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UPSC ESE (Prelims) Civil Engineering 19 Feb 2023 Official Paper
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  1. Shear stress
  2. Maximum shear stress
  3. Principal stress
  4. Tangential stress

Answer (Detailed Solution Below)

Option 3 : Principal stress
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Detailed Solution

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Explanation:

Principal planes and principal stresses:

  • The planes, which have no shear stress, are known as principal planes.
  • The principal planes are the planes of zero shear stress.
  • These planes carry only normal stresses.
  • The normal stresses, acting on a principal plane, are known as principal stresses.

​Hence option (3) is the correct answer.

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