Question

Types of Boundary conditions are ______

(a) Potential- Energy approach

(b) Penalty approach

(c) Elimination approach

(d) Both penalty approach and elimination approach

The question was asked in an international level competition.

My doubt is from Finite Element Equations topic in portion One Dimensional Problems of Finite Element Method

Answer 1

The correct option is (d) Both penalty approach and elimination approach

The best I can explain: Boundary condition means a condition which a quantity that varies through out a given space or enclosure must be fulfill at every point on the boundary of that space. In fem, Boundary conditions are basically two types they are Penalty approach and elimination approach.