Which of the following is true about local buckling?
(a) failure occurs by twisting of one or more individual elements of member
(b) failure occurs by buckling of one or more individual elements of member
(c) failure occurs by both buckling and twisting of one or more individual elements of member
(d) cannot be prevented by selecting suitable width-to-thickness ratio of elements
I had been asked this question in my homework.
I'd like to ask this question from Behaviour and Ultimate Strength of Plates and Possible Failure Modes topic in portion Plastic and Local Buckling Behaviour of Steel of Design of Steel Structures