PSI - Issue 27

Ikhsan et al. / Procedia Structural Integrity 27 (2020) 101–108

103

3

Ikhsan et al. / Structural Integrity Procedia 00 (2019) 000 – 000

Table 1. Material mechanical properties (Sabatini and Goswami, 2008).

Elastic Modulus (GPA)

Ultimate tensile strength (MPa)

Yield strength (MPa)

Poisson’s ratio

Density (g/cm 3 )

No

Material

1

Ti (Ti-6Al-4V)

114

900

880

0.32

4.4

Fig. 1. The type of fenestration used.

2.2. Boundary conditions and meshing strategy

This step aims to provide boundary conditions and input loading on the model. The boundary conditions used in this study were following Pachioga et al. (2011), which were chosen to be applied to the stem in all directions. Static loading is applied to all design models with identical boundary conditions. In addition, a load of 2700 N was applied to the femoral head with an angle of 16 0 from the vertical axis. The loading value was obtained from the morphological measurement data of the patients according to the following Table 2. Fig. 2 shows the boundary conditions and loading used. According to data from Table 2., using the calculation of the moment equilibrium equation, we obtain the final value for the force was 2700 N.

Table 2. Morphological parameters of patients (Pachioga et al., 2011).

Angle of Neck on Shaft (°)

Distance Between Femoral Heads (mm)

Femoral Head Diameter (mm)

Age (Year)

Height (cm)

Weight (kg)

No

1

57

179.2

82

199.65

49.1

127.8