Three-Dimensional Finite Element Analysis of Human Femur: A Comparative Study - Proceedings of All India Seminar on Biomedical Engineering 2012 (AISOBE-2012) - page 39

Model 1 Model 2 Model 3

Fig. 4 Volumetric meshed models in MIMICS

• Removal of extra shells.
• Self-intersection test to eliminate intersecting triangles completely.
Properties after remeshing of different models:
Model 1—volume 102094.20 mm 3 , surface 26160.67 mm 2 , triangles 23,816, and
points 11,952,
Model 2—volume 471900.53 mm 3 , surface 133994.83 mm 2 , triangles 125,884,
and points 62,644,
Model 3—volume 328123.40 mm 3 , surface 115667.27 mm 2 , triangles 128,374,
and points 63,953.

These models are now imported in ABAQUS 6.10 to convert surface mesh into
volumetric mesh. In mesh tool, choosing edit mesh category and then selecting
convert tri to tetra generates volumetric meshed models. This volumetric meshing
converts triangular elements of surface mesh into four-node linear tetrahedron
elements (C3D4). The three models are meshed with the following number of 3D
tetrahedron elements: 268,858, 959,083, and 809,524, respectively. Figure 3
shows volumetric meshed models of femur in ABAQUS. From ABAQUS, these
volumetric meshed models are again imported into MIMICS for material assign-
ment. Figure 4 shows volumetric meshed models after they are imported in
MIMICS.