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Page 4 of 13 Sun et al. Vessel Plus 2020;4:13 I http://dx.doi.org/10.20517/2574-1209.2020.02

Figure 2. Distribution of test points for a two-factor general rotating combination design

Table 1. Coding factors for abdominal aortic aneurysm models designed for males and females and corresponding values
Coded levels
Factors
-r (-1.682) -1 0 +1 +r (1.682)
Diameter (mm) Male 30 36.1 45 53.9 60
Female 27 31.7 38.5 45.3 50
Asymmetry index 0.3 0.44 0.65 0.86 1
Wall thickness (mm) 0.8 1.08 1.5 1.92 2.2

Table 2. Design matrix as well as simulated and predicted peak wall stresses for the abdominal aortic aneurysm models
designed for males
Test model Maximum diameter Simulated peak wall Predicted peak wall
(male) D max (mm) Asymmetry index β Wall thickness t (mm) stress (KPa) stress (KPa)
1 1 (53.9) 1 (0.86) 1 (1.92) 273.85 276.29
2 1 (53.9) 1 (0.86) -1 (1.08) 531.13 533.65
3 1 (53.9) -1 (0.44) 1 (1.92) 415.19 415.67
4 1 (53.9) -1 (0.44) -1 (1.08) 822.74 823.11
5 -1 (36.1) 1 (0.86) 1 (1.92) 167.33 178.41
6 -1 (36.1) 1 (0.86) -1 (1.08) 326.61 337.61
7 -1 (36.1) -1 (0.44) 1 (1.92) 267.29 276.23
8 -1 (36.1) -1 (0.44) -1 (1.08) 576.48 585.51
9 r (60) 0 (0.65) 0 (1.5) 487.86 489.81
10 -r (30) 0 (0.65) 0 (1.5) 225.48 207.67
11 0 (45) r (1) 0 (1.5) 257.02 245.41
12 0 (45) -r (0.3) 0 (1.5) 574.79 571.11
13 0 (45) 0 (0.65) r (2.2) 228.5 220.15
14 0 (45) 0 (0.65) -r (0.8) 820.63 817.73
15 0 (45) 0 (0.65) 0 (1.5) 374.61 375.67
16 0 (45) 0 (0.65) 0 (1.5) 374.73 375.67
17 0 (45) 0 (0.65) 0 (1.5) 371.05 375.67
18 0 (45) 0 (0.65) 0 (1.5) 372.17 375.67
19 0 (45) 0 (0.65) 0 (1.5) 378.92 375.67
20 0 (45) 0 (0.65) 0 (1.5) 379.23 375.67