Research Article

Fast Stiffness Matrix Calculation for Nonlinear Finite Element Method

Table 9

Computation times (in seconds) of stiffness matrices (Pedersen: Pedersen’s nonlinear FEM; Proposed: proposed nonlinear FEM; and Speed-up: relative performance comparison of the stiffness matrix calculation of the proposed nonlinear FEM method with Pedersen’s nonlinear FEM method using single thread).

Exp. Elements Pedersen Proposed Speed-up

1st 6 0.7322 0.3308 221.3422
2nd 216 28.1624 11.1542 252.4825
3rd 224 30.1094 12.2725 245.3404
4th 1580 239.8753 96.7840 247.8460