creation of material toward the internal core of the scaffolds, an
internal oval-shaped unit was defined and introduced to the initial
CAD models. The initial case scenarios are maintained with an
additional fixed oval body internally. This constraint forcing the
creation of material, not only in the boundary of the scaffolds but
also internally to the scaffold, increases its structural integrity.
Similarly, to the previous three scenarios, the following three
present the same loading and constraint solicitations along with an
internal fixed core structure (Fig. 11):
Fig. 11 Illustration of the variation of the solicitations according to each direction: (a) tensile and rotational
displacement in the XX direction; (b) tensile and rotational displacement in the YY direction; (c) tensile and
rotational displacement in the ZZ direction
14
Henrique A. Almeida and Paulo J. Ba ´ rtolo