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Q: Principle of superposition is applicable when
  • A. deflections are linear functions of applied loads
  • B. material does not obey Hooke's law
  • C. the action of applied loads will be affected by small deformation of the structure
  • D. stress-strain relation in non-linear
Correct Answer: Option A - The principal of superposition states that when a structure is subjected to a different set of lead the sum of deflections under each set of loads acting separately in equal to the total deflection of the structure due to the different set provided loads. Principal of superposition is valid when following condition satisfied. (1) The material must behave in a linear elastic manner and material obeys hooke's law. (2) Stress-strain relation is linear. (3) Deflection are linear functions of applied load.
A. The principal of superposition states that when a structure is subjected to a different set of lead the sum of deflections under each set of loads acting separately in equal to the total deflection of the structure due to the different set provided loads. Principal of superposition is valid when following condition satisfied. (1) The material must behave in a linear elastic manner and material obeys hooke's law. (2) Stress-strain relation is linear. (3) Deflection are linear functions of applied load.

Explanations:

The principal of superposition states that when a structure is subjected to a different set of lead the sum of deflections under each set of loads acting separately in equal to the total deflection of the structure due to the different set provided loads. Principal of superposition is valid when following condition satisfied. (1) The material must behave in a linear elastic manner and material obeys hooke's law. (2) Stress-strain relation is linear. (3) Deflection are linear functions of applied load.