Civil Engineering MCQAE Level Civil Engineering
Maxwell's reciprocal theorem states that for a linear elastic structure:
Structural AnalysisMaxwell TheoremMEDIUM
Choose the correct answer
A
The stiffness matrix is diagonal
B
Deflection at point i due to unit load at j equals deflection at j due to unit load at i
C
Internal work equals external work
D
Strain energy is minimum at equilibrium
Correct Answer
B. Deflection at point i due to unit load at j equals deflection at j due to unit load at i
Why is this the answer?
Maxwell's reciprocal theorem: f_ij = f_ji, i.e., the displacement at coordinate i due to a unit force at j equals the displacement at coordinate j due to a unit force at i.
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