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In structural mechanics, which option is not correct about linear analysis?

(a) Displacements are infinitesimally small

(b) Material is linearly elastic

(c) Externally applied loads are a function of time

(d) Applied loads are not a function of time

This question was posed to me by my college director while I was bunking the class.

The question is from Eigen Value and Time Dependent Problems topic in section Single Variable Problems of Finite Element Method

1 Answer

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Best answer
The correct answer is (c) Externally applied loads are a function of time

Best explanation: In a linear analysis, we assume that the displacements of a finite element assemblage are infinitesimally small and the material is linearly elastic. In addition, we also assume that a nature of boundary conditions remains unchanged during application of loads on Finite element assemblage. Loads are constant with respect to time.

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