Design and optimization of next-generation composite materials through additive manufacturing : towards revolutionary mechanical

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This thesis examines the behavior of 3D-printed composite materials under various environmental conditions, focusing on the effects of temperature, dynamic and static testing, and numerical modeling. 3D printing is transforming industries such as aerospace, automotive, and medical by enabling the rapid production of complex shapes. However, challenges remain, such as part deformation and lower production rates compared to traditional methods. The goal is to enhance the mechanical performance of thermoplastics and composites by optimizing printing parameters to reduce defects like warping and residual stresses. The reserach focuses on developing new materials, such as carbon fiber and nanoceramic-reinforced thermoplastic polymers, to produce multi-material components. The materials studied include ABS, CF-PETG, and polycarbonate reinforced type, infill patterns (rectilinear, honeycomb), and infill percentages (20 %, 50 %, 75 % and 100 %) were analyzed through experimental and numerical methods. Techniques such as scanning electron microscopy (SEM) and finite element modelling (FEM) were used to explore the microstructure and mechanical properties.

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