PSI - Issue 42

Sergio Cicero et al. / Procedia Structural Integrity 42 (2022) 18–26 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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5

Table 2. Fracture toughness results on each individual test following ASTM D5045 standard, and experimental critical loads (P max ), and critical load predictions (P est ). Raster orientation ρ (mm) Test P max (N) P max,avg (N) K N mat (MPam 1/2 ) K N mat,avg (MPam 1/2 ) Pest (N)

0.00 0.00 0.00 0.00 0.25 0.25 0.25 0.25 0.50 0.50 0.50 0.50 1.00 1.00 1.00 1.00 2.00 2.00 2.00 2.00 0.00 0.00 0.00 0.00 0.25 0.25 0.25 0.25 0.50 0.50 0.50 0.50 1.00 1.00 1.00 1.00 2.00 2.00 2.00 2.00 0.00 0.00 0.00 0.00 0.25 0.25

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2

177.4 175.6 204.2 195.4 238.0 217.9 235.2 256.9 242.3 249.4 266.2 287.6 262.2 258.2 215.6 200.7 211.4 196.1 156.6 184.2 162.8 170.6 204.4 242.5 247.2 250.9 240.7 234.7 242.5 281.9 262.8 257.5 249.3 213.5 204.9 205.0 215.2 148.6 135.2 138.6 166.8 238.8 235.1 - - -

3.24 3.16 3.95 3.48 4.64 4.39 4.61 5.08 4.83 4.37 4.53 4.73 5.19 5.58 4.01 4.04 3.79 3.80 2.95 3.71 3.12 2.92 3.88 5.03 4.36 5.04 4.46 4.77 4.95 4.80 5.44 4.51 4.60 4.22 3.32 3.99 3.99 2.89 2.50 2.74 3.13 4.66 4.78 - - -

188.1

3.46

-

230.3

4.55

161.0

0/90

249.5

4.76

170.0

268.5

5.01

178.0

205.9

3.91

197.3

168.5

3.18

PLA

231.3

4.43

134.3

30/-60

242.1

4.81

136.5

262.8

4.84

133.7

209.6

3.88

148.7

147.2

2.82

45/-45

246.0

4.75

117.3