Civil Engineering MCQAE Level Civil Engineering
The relationship between the stiffness matrix [K] and flexibility matrix [F] of a structure is:
Structural AnalysisFlexibility-Stiffness RelationshipMEDIUM
Choose the correct answer
A
[K] = [F]²
B
[K] = 2[F]
C
[K] = [F]⁻¹
D
[K] + [F] = [I]
Correct Answer
C. [K] = [F]⁻¹
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[K] = [F]⁻¹ (they are matrix inverses of each other). Multiplying [K] by [F] or [F] by [K] gives the identity matrix [I].
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