Delamination analysis of 3D-printed nylon reinforced with continuous carbon fibers

E Polyzos, A Katalagarianakis, D Van Hemelrijck… - Additive …, 2021 - Elsevier
The inconsistent interfacial bonding of 3D-printed materials is accompanied by increasing
scattering of the measured fracture toughness in delamination tests. This article focuses on …

Modeling elastic properties of 3D printed composites using real fibers

E Polyzos, D Van Hemelrijck, L Pyl - International Journal of Mechanical …, 2022 - Elsevier
The microstructure of 3D printed composites is inherently different than traditional
composites due to the manufacturing process. The differences influence morphological …

Fracture toughness determination and mechanism for mode-I interlaminar failure of 3D-printed carbon-Kevlar composites

Z Dang, J Cao, A Pagani, C Zhang - Composites Communications, 2023 - Elsevier
Additive manufacturing for continuous fiber composite exhibits great potential for the
fabrication of sophisticated structural components. Nevertheless, interlaminar characteristics …

Influence of void contour on the elastic behavior of parts produced by material extrusion

E Polyzos, D Van Hemelrijck, L Pyl - Additive Manufacturing, 2022 - Elsevier
The significant void content is the most noticeable flaw of 3D printed thermoplastic
structures. The voids run parallel to the printed filaments, resulting in non-ellipsoidal …

Analytical and numerical modeling of voids in additively manufactured thermoplastic parts

E Polyzos, SB Ravindranath, D Van Hemelrijck… - Additive Manufacturing, 2021 - Elsevier
Additively manufactured parts of thermoplastic materials using the Fused Filament
Fabrication (FFF) technique express transversely isotropic characteristics. Those …

[HTML][HTML] Mode I, mode II and mixed mode I-II delamination of carbon fibre-reinforced polyamide composites 3D-printed by material extrusion

A Katalagarianakis, E Polyzos… - Composites Part A …, 2023 - Elsevier
Continuous carbon fibres can greatly improve the properties of 3D-printed polymer parts
made by material extrusion. However, like all laminated composites, 3D-printed parts are …

Experimental and numerical investigation on compression after impact behavior of hygrothermal aged CFRP laminates

W Huang, C Li, L **e, D Jia, B Chai… - Polymer …, 2022 - Wiley Online Library
In the paper, a detailed experimental and numerical investigation of compression after
impact (CAI) behavior of hygrothermal aged T300 985LV carbon/epoxy composites is …

Measuring and Predicting the effects of residual stresses from full-Field Data in Laser-Directed Energy Deposition

E Polyzos, H Pulju, P Mäckel, M Hinderdael, J Ertveldt… - Materials, 2023 - mdpi.com
This article presents a novel approach for assessing the effects of residual stresses in laser-
directed energy deposition (L-DED). The approach focuses on exploiting the potential of …

Analytical probabilistic progressive damage modeling of single composite filaments of material extrusion

E Polyzos, E Vereroudakis, S Malefaki… - International Journal of …, 2024 - Elsevier
This research focuses on investigating the elastic and damage characteristics of individual
composite beads utilized in additively manufactured (3D printed) composites. A novel …

Effect of printing direction on the elastic properties of 3D-printed nylon materials

E Polyzos, L Pyl - Physical Sciences Forum, 2022 - mdpi.com
Thermoplastic parts created using the Fused Filament Fabrication (FFF) technique exhibit
transversely isotropic characteristics. The latter are associated with the development of …