PSI - Issue 47

Hachimi Taoufik et al. / Procedia Structural Integrity 47 (2023) 711 – 722 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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As the length of a crack increases, it is observed that the numerical data tend toward higher values of crack stress intensity. They are considering the preceding observations. The calculated SIF values seem identical. The critical stress intensity factor KIc is the same and is about 5.65 MPa√m. They resemble one another. The experimental and numerical outcomes agree regarding variations of stress intensity factor as a function of crack length. 4. Conclusion This study examined the propagation of cracks for printed polymers using the software calculation code and the XFEM method. This numerical analysis is compared to experimental research on a mode-I-requested ABS SENT specimen. We discovered that the mechanical properties are closer, especially for the elastic zone, and the fracture remains relatively stable until 70% of the structure's life, which corresponds to the starting zone. Beyond this threshold, the crack spreads fast till the collapse of the structure, as the stress intensity factor rises as the crack advances. The speed of propagation of cracks can be separated into three phases: the phase of initiation corresponds to the low rate for low values of FIC, the second phase is the intermediate where the curve becomes quasi-static, and the third phase, whose increasing speed leads to the imminent collapse of the structure. Experimentally and numerically, we examined the impact of the interaction between ABS acrylonitrile butadiene styrene layers. The model cannot capture the behavior where the optimized deposition method is applied to a small zone compared to the area of the specimen. References Hachimi, T., Naboulsi, N., Majid, F., Rhanim, R., Mrani, I., Rhanim, H., 2021. Design and Manufacturing of a 3D printer filaments extruder. Procedia Structural Integrity 33, 907 – 916. Majid, F., Zekeriti, N., Rhanim, R., Lahlou, M., Rhanim, H., Mrani, B., 2020. 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