## 5 Discussion  
The main hypothesis approached in this work is that the internal biomimetic structure and the circumferential adjustment in the prosthesis would generate a natural behavior in daily activities and realistic to the touch for people who use the prosthesis. The above qualities are not present in any commercial product and in the scientific literature no advancement is reported in this field. For this purpose, a biomimetic model in 3D was developed that includes a lobular configuration in its internal structure and a circumferential adjustment. The model can be scalable for any type of patient. The circumferential adjustments are used to obtain better distributions of stress in some engineering applications. Therefore, a finite element model was generated, which was evaluated with different load cases: standing upright, facing down on all fours, facing up and the cases of palpation proposed, and a modal analysis. The results obtained in terms of displacements and stress are within the results presented in works that use FEM models for cancer diagnosis or detection and for brassiere design. The deformation of the prosthesis contours is symmetrical and smooth; likewise, it does not present irregularities on the surface and has natural deformation patterns, resembling a real breast. The fields of stress indicate that the loads are distributed uniformly due to the contour and prosthesis structure; that is, the loads are not concentrated on a particular point, which means that the person will have the sensation of consistency to the touch without feeling great opposition to the palpation force applied, \begin{table}
\begin{tabular}{c c c} \hline \hline
**Mode** & **Frequency Obtained (Hz)** & **Frequency (Hz)**[25] \\ \hline
1 & 3.59 & 4.87 \\
2 & 3.64 & 4.91 \\
3 & 5.05 & 4.99 \\
4 & 5.84 & 5.02 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Comparison of the obtained natural frequencies with those reported. Figure 13: Displacement contour plots for modal analysis. giving the prosthesis a great feeling of realism and belonging. The biomimetic lobular structure remained stable and without any problems during the evaluation of the prosthesis for the load cases posed. In cases \"**b**\" and \"**c**\", the same magnitudes of displacements were obtained, as shown in the cutaway section of the models (Figure 14), where although the magnitude is the same, the distribution within the structure is different. The internal biomimetic structure of the prosthesis behaves satisfactorily for the load cases evaluated, as shown in Figure 15. In this figure can be observed at the displacement contour plots for cases \"**a**\", \"**d**\", \"**e**\" and \"**f**\" that the displacement values are within the results reported by similar research. Likewise, in modal analysis, the prosthesis presents the behavior of the internal biomimetic structure, as shown in Figure 16.  
Figure 16: Displacement contour plots for modal analysis. Figure 14: Displacement contour plots (cutaway) for case “**b**” and “**c**”, respectively. Figure 15: Displacement contour plots for cases “**a**”, “**d**”, “**e**” and “**f**”. As can be appreciated in the above figure, in no modal form does the proposed prosthesis present irregularities or bad behavior. These results ensure good functioning when the prosthesis is subjected to dynamic perturbations. The analysis of the results obtained in terms of displacements and stress, lie within the results reported in the literature that use FEM models for cancer diagnosis or detection and for brassiere design. The deformation of the contours of the prosthesis is symmetrical and smooth, as well. There are no irregularities on the surface, and it has natural deformation patterns to resemble a real breast.