Research Article

Fast Stiffness Matrix Calculation for Nonlinear Finite Element Method

Table 2

The displacements (in m) at nodes 1, 2, 3, and 4 using the nonlinear FEM for the first experiment. The displacements of nodes 5 to 8 for all axes are zero.

Node Displacement- Displacement- Displacement-

1 0.029911 0.012665 −0.278365
2 0.008606 −0.103350 −0.415594
3 −0.058835 −0.051901 −0.324126
4 −0.098945 0.068928 −0.478495