Figure 8.

(a) 3 × 3 × 3 grid points (solid) and 2³ quadrature points (stars) in each background cell; (b) 3 × 3 × 3 grid points (solid) and 3³ quadrature points (stars) in each background cell; (c) meshfree representation of cube with irregular sample nodes (1106 nodes); (d) all the fiber directions are (0.57735, 0.57735, −0.57735); (e) all the fiber directions are (0.57735, −0.57735, 0.57735); (f) half is (0.57735, 0.57735, −0.57735) and half is (0.57735, 0.57735, −0.57735). Red points in the front side are stimulated at the beginning.