Question

For four noded quadrilateral element, the global load vector can be determined by considering the body force term in _____

(a) Kinetic energy

(b) Potential energy

(c) Kinematic energy

(d) Temperature

The question was asked in class test.

The question is from Two Dimensional Isoparametric Elements in section Two Dimensional Isoparametric Elements and Numerical Integration of Finite Element Method

Answer 1

Right choice is (b) Potential energy

Best explanation: A body force that is distributed force per unit volume, a vector, many people probably call up Vector’s definition (from Despicable Me). He says: It’s a mathematical term. A quantity represented by an arrow with both direction and magnitude. … Vector: a quantity with more than one element (more than one piece of information).