Question

How do you define slenderness ratio?

(a) Ratio of column’s effective length to c/s radius of gyration

(b) Ratio of slender body width to the bluff body height

(c) Ratio of lift to drag

(d) Ratio of Thrust to weight

I had been asked this question in semester exam.

This question is from Structural-Analysis Fundamentals in chapter Structures and Loads of Aircraft Design

Answer 1

Correct choice is (a) Ratio of column’s effective length to c/s radius of gyration

The explanation is: The ratio of column’s effective length to c/s radius of gyration can be termed as slenderness ratio. The effective length of the column is determined based on the end constraints such as pinned joints, fixed ends etc.