Question

In shape functions, _________ must be continuous across the element boundary.

(a) Derivatives

(b) Nodes

(c) Displacement

(d) Shape function

This question was posed to me by my school teacher while I was bunking the class.

Question is from One Dimensional Problems in chapter One Dimensional Problems of Finite Element Method

Answer 1

The correct option is (c) Displacement

Best explanation: Shape functions are interpolation functions. In general shape functions need to satisfy that, displacements must be continuous across the element boundary.