Ahmad Akbari R.

3 Questions 10 Answers 0 Followers

Questions related from Ahmad Akbari R.

Why does second displacement gradient vary proportionally to the inverse of the element size?

When we solve an elasticity problem with a high order FEM, why are the second gradient of displacement and the element size inversely proportional?

03 March 2014 4,149 2 View

My nonlinear FE problem does not converge optimally when Dirichlet BCs are imposed by Lagrange multipliers. Any idea?

I try to solve a nonlinear finite element problem by NR solver. The Dirichlet BCs are imposed by 1) penalty method and 2) Lagrange multipliers. Does anybody knows why the residual force converges...

09 September 2012 2,431 2 View

Hello, Could you please help me to find C without inverting B? Thanks.

C= inv( Trans(A) * inv(B) * A ) A is a rectangular matrix, and B is a large square matrix.

01 January 2012 7,291 12 View