Optimization of a Functionally Graded Material Stem in the Femoral Component of a Cemented Hip Arthroplasty: Influence of Dimensionality of FGM

Table 2

Cross-sectional profile, FGM stiffness’s parameters, stress shield, and cement accumulated damage at the design life of three optimal configurations.

Optimal configurations	Exponents				Stiffness		Accumulated cement damage: (%)	Stress shielding coefficient: (%)
	Cross-section.2	Cross-section.3	Cross-section.4	Cross-section.5	(GPa)	(GPa)
(a)	Oval	Trapezoidal	Trapezoidal	Oval	22.4	11.2	7.0	27.2
(b)	Oval	Trapezoidal	Trapezoidal	Oval	26.2	18.2	2.2	28.1
(c)	Trapezoidal	Trapezoidal	Trapezoidal	Trapezoidal	26.2	20.0	4.1	30.3