Fast Stiffness Matrix Calculation for Nonlinear Finite Element Method

Table 11

Newton-Raphson iteration count to reach desired accuracy (Pedersen: Pedersen’s nonlinear FEM; Proposed: proposed nonlinear FEM).

Exp.	Elements	Pedersen	Proposed
1st	6	5	5
2nd	216	7	7
3rd	224	26	32
4th	1580	8	8