PSI - Issue 61

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Salamatian Hosseini et al. / Structual Integrity Procedia 00 (2024) 000-000

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Shadi Salamatian Hosseini et al. / Procedia Structural Integrity 61 (2024) 20–25 Salamatian Hosseini et al. / Structual Integrity Procedia 00 (2024) 000-000 Salamatian Hosseini et al. / Structual Integrity Procedia 00 (2024) 000-000 Salamatian Hosseini et al. / Structual Integrity Procedia 00 (2024) 000-000

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Fig. 1. Schematic of tensile sample (all dimensions in mm). Fig. 1. Schematic of tensile sample (all dimensions in mm).

Table 2. Average mechanical properties for FDM-PLA samples printed with different nozzle diameters. Nozzle diameter, D (mm) Raster angle, θ R (deg) Young’s modulus, E (MPa) Yield stress, σ Y (MPa) Poisson’s ratio, ʋ Table 2. Average mechanical properties for FDM-PLA samples printed with different nozzle diameters. Nozzle diameter, D (mm) Raster angle, θ R (deg) Young’s modulus, E (MPa) Yield stress, σ Y (MPa) Poisson’s ratio, ʋ Fig. 1. Schematic of tensile sample (all dimensions in mm). Table 2. Average mechanical properties for FDM-PLA samples printed with different nozzle diameters. Nozzle diameter, D (mm) Raster angle, θ R (deg) Young’s modulus, E (MPa) Yield stress, σ Y (MPa) Poisson’s ratio, ʋ Fig. 1. Schematic of tensile sample (all dimensions in mm). Table 2. Average mechanical properties for FDM-PLA samples printed with different nozzle diameters. Nozzle diameter, D (mm) Raster angle, θ R (deg) Young’s modulus, E (MPa) Yield stress, σ Y (MPa) Poisson’s ratio, ʋ Fig. 1. Schematic of tensile sample (all dimensions in mm). Table 2. Average mechanical properties for FDM-PLA samples printed with different nozzle diameters. Nozzle diameter, D (mm) Raster angle, θ R (deg) Young’s modulus, E (MPa) Yield stress, σ Y (MPa) Poisson’s ratio, ʋ 0.4 0.4 0/90 0/90 0/90 0/90

Ultimate tensile strength, σ UTS (MPa) Ultimate tensile strength, σ UTS (MPa) Ultimate tensile strength, σ UTS (MPa) Ultimate tensile strength, σ UTS (MPa) Ultimate tensile strength, σ UTS (MPa)

ɛ rupture ɛ rupture 0.06 0.11 0.05 0.08 0.07 0.09 0.06 0.07 0.06 0.11 0.05 0.08 0.07 0.09 0.06 0.07 ɛ rupture 0.06 0.11 0.05 0.08 0.07 0.09 0.06 ɛ rupture 0.06 0.11 0.05 0.08 0.09 0.06 ɛ rupture 0.06 0.11 0.05 0.08 0.09 0.07

2501 2629 2336 2054 3109 3026 3468 2834 2501 2629 2336 2054 3109 3026 3468 2834 2501 2629 2336 2054 3109 3026 3468 2834 2501 2629 2336 2054 3109 3026 3468 2834 2501 2629 2336 2054 3109 3026 3468 2834

20.60 24.47 19.77 24.72 28.34 29.87 32.10 29.76 20.60 24.47 19.77 24.72 28.34 29.87 32.10 29.76 20.60 24.47 19.77 24.72 28.34 29.87 32.10 29.76 20.60 24.47 19.77 24.72 28.34 29.87 32.10 29.76 20.60 24.47 19.77 24.72 28.34 29.87 32.10 29.76

0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3

24.40 26.47 22.17 26.13 31.09 32.06 33.60 32.62 24.40 26.47 22.17 26.13 31.09 32.06 33.60 32.62 24.40 26.47 22.17 26.13 31.09 32.06 33.60 32.62 24.40 26.47 22.17 26.13 31.09 32.06 33.60 32.62 24.40 26.47 22.17 26.13 31.09 32.06 33.60 32.62

45/-45 45/-45 0/90 45/-45 0/90 45/-45 0/90 45/-45 45/-45 45/-45 0/90 45/-45 0/90 45/-45 0/90 45/-45 0/90 0/90 45/-45 45/-45 0/90 45/-45 0/90 45/-45 0/90 45/-45 0/90 0/90 45/-45 45/-45 0/90 45/-45 0/90 45/-45 0/90 45/-45

0.6 0.6 0.4 0.4 0.4 0.8 0.8 0.6 0.6 0.6 1 1 0.8 0.8 0.8

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3.3 Fracture tests and finite element analysis Semi-circular Bending (SCB) sample was designed and printed by FDM machine with the same nozzle diameters of 0.4, 0.6, 0.8, and 1 mm (see Fig. 2). The pre-crack length was 12.5 mm where 10 mm of it was generated by a sawing machine and the remaining 2.5 mm end was created by tapping a fresh razor blade. All the SCBs were tested under a three-point bending test procedure with a rate of 2 mm/min. Then, load-displacement curves were recorded during the fracture experiments and the pick loads were selected for finite element simulations and calculations of J c values. Representative load-displacement curves are shown in Fig. 3. 3.3 Fracture tests and finite element analysis Semi-circular Bending (SCB) sample was designed and printed by FDM machine with the same nozzle diameters of 0.4, 0.6, 0.8, and 1 mm (see Fig. 2). The pre-crack length was 12.5 mm where 10 mm of it was generated by a sawing machine and the remaining 2.5 mm end was created by tapping a fresh razor blade. All the SCBs were tested under a three-point bending test procedure with a rate of 2 mm/min. Then, load-displacement curves were recorded during the fracture experiments and the pick loads were selected for finite element simulations and calculations of J c values. Representative load-displacement curves are shown in Fig. 3. 3.3 Fracture tests and finite element analysis Semi-circular Bending (SCB) sample was designed and printed by FDM machine with the same nozzle diameters of 0.4, 0.6, 0.8, and 1 mm (see Fig. 2). The pre-crack length was 12.5 mm where 10 mm of it was generated by a sawing machine and the remaining 2.5 mm end was created by tapping a fresh razor blade. All the SCBs were tested under a three-point bending test procedure with a rate of 2 mm/min. Then, load-displacement curves were recorded during the fracture experiments and the pick loads were selected for finite element simulations and calculations of J c values. Representative load-displacement curves are shown in Fig. 3. 0.07 3.3 Fracture tests and finite element analysis Semi-circular Bending (SCB) sample was designed and printed by FDM machine with the same nozzle diameters of 0.4, 0.6, 0.8, and 1 mm (see Fig. 2). The pre-crack length was 12.5 mm where 10 mm of it was generated by a sawing machine and the remaining 2.5 mm end was created by tapping a fresh razor blade. All the SCBs were tested under a three-point bending test procedure with a rate of 2 mm/min. Then, load-displacement curves were recorded during the fracture experiments and the pick loads were selected for finite element simulations and calculations of J c values. Representative load-displacement curves are shown in Fig. 3. 1 0.06 0.07 3.3 Fracture tests and finite element analysis Semi-circular Bending (SCB) sample was designed and printed by FDM machine with the same nozzle diameters of 0.4, 0.6, 0.8, and 1 mm (see Fig. 2). The pre-crack length was 12.5 mm where 10 mm of it was generated by a sawing machine and the remaining 2.5 mm end was created by tapping a fresh razor blade. All the SCBs were tested under a three-point bending test procedure with a rate of 2 mm/min. Then, load-displacement curves were recorded during the fracture experiments and the pick loads were selected for finite element simulations and calculations of J c values. Representative load-displacement curves are shown in Fig. 3.

Fig. 2. Schematic of SCB sample (all dimensions in mm). Fig. 2. Schematic of SCB sample (all dimensions in mm).

Fig. 2. Schematic of SCB sample (all dimensions in mm).