In the flexibility method, what does the flexibility coefficient fij represent?
Correct answer: B. Displacement at coordinate i due to unit force at j
- A. Force at coordinate i due to unit displacement at j
- B. Displacement at coordinate i due to unit force at j
- C. Rotation at coordinate j due to unit moment at i
- D. Moment at coordinate i due to unit rotation at j
Explanation
The coefficient fij is the displacement at coordinate i caused by a unit force applied at coordinate j. It is a displacement per unit force and is therefore used in compatibility equations.
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