Question

In the Finite Element Method, if two different values of the same degree of freedom are specified at a point, then such point is called as a singular point.

(a) True

(b) False

I had been asked this question in semester exam.

This interesting question is from Plane Elasticity in section Plane Elasticity of Finite Element Method

Answer 1

Right answer is (a) True

The best I can explain: The points at which both displacement and force degrees of freedom are known or when two different values of the same degree of freedom are specified are called as singular points. In problems with multiple DOF, we are required to decide as to which degree of freedom is known when singular points are encountered.