Question

Which of the following statement is true?

(a) plate cannot carry loads higher than elastic critical load

(b) plate cannot carry loads lesser than elastic critical load

(c) secondary path for a plate is unstable

(d) secondary path for a plate is stable

I had been asked this question during an online interview.

The query is from Behaviour and Ultimate Strength of Plates and Possible Failure Modes topic in chapter Plastic and Local Buckling Behaviour of Steel of Design of Steel Structures

Answer 1

The correct option is (d) secondary path for a plate is stable

Explanation: The secondary path shows that plate can carry loads higher than elastic critical load. The secondary path for a plate is stable.