Question

What is plastic hinge?

(a) zone of bending due to flexure in a structural member

(b) zone of yielding due to flexure in a structural member

(c) zone of non-yielding due to flexure in a structural member

(d) zone of yielding due to twisting in a structural member

The question was posed to me during an interview for a job.

This intriguing question originated from General Requirements for Plastic Design and Plastic Hinge in chapter Plastic and Local Buckling Behaviour of Steel of Design of Steel Structures

Answer 1

The correct option is (b) zone of yielding due to flexure in a structural member

The explanation: Plastic hinge is a zone of yielding due to flexure in a structural member. It is used to describe a deformation of a section when plastic bending occurs.