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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: Ann Biomed Eng. 2016 Aug 23;45(3):668–680. doi: 10.1007/s10439-016-1714-3

FIGURE 4.

FIGURE 4.

Response surfaces based on R2-based selection (5%) surrogate models reported in Table 3. Red dots are the FEA results used to fit the surrogate models. (a): in axial loading σplate_max response surface as a function of Linner and Eimplant. (b): in axial loading εaxial response surface as a function of dgap and Linner. (c): in torsion loading εshear response surface as a function of dgap and Linner. In (a), Louter was constant (26.5 cm), and Eimplant and was Nscrews constant (200 GPa and 2 respectively) in (d).