Mathematical modeling and computer simulation of needle insertion into soft tissue
Fig 5
Meshless computational grids used when verifying convergence of the method for modeling of needle insertion proposed in this study.
(a) Coarse grid (7,480 nodes); (b) Moderate grid (17,730 nodes); and (c) Refined grid (30,294 nodes). Convergence analysis was conducted through modeling of needle insertion into a cylindrical sample according to the experimental set-up shown in Fig 4.