Question

In conjugate gradient implementation of quadrilateral elements the stiffness of each element is stored in three dimensional arrays.

(a) True

(b) False

I had been asked this question in an interview.

I'd like to ask this question from Conjugate Gradient Implementation of Quadrilateral Element in section Two Dimensional Isoparametric Elements and Numerical Integration of Finite Element Method

Answer 1

Right option is (a) True

The explanation is: The stiffness of each quadrilateral element is stored in three dimensional arrays. Thus stiffness of each element can be recalled without recalculating for iterations carried out.