Parcourir par auteur "Ochana, Imi"
Voici les éléments 1-5 de 5
-
Additively Manufactured Multifunctional Composite Parts with the Help of Coextrusion Continuous Carbon Fiber: Study of Feasibility to Print Self-Sensing without Doped Raw Material
25 août 2023, DEMARBAIX, Anthonin
; Ochana, Imi; Levrie, Julien; Coutinho, Isaque; Cunha, Sebastião Simões Jr.; Moonens, Marc, HE Condorcet
Article scientifiqueAbstract ; "Nowadays, the additive manufacturing of multifunctional materials is booming. The fused deposition modeling (FDM) process is widely used thanks to the ease with which multimaterial parts can be printed. The main limitation of this process is the mechanical properties of the parts obtained. New continuous-fiber FDM printers significantly improve mechanical properties. Another limitation ... -
Characterization of Defects by Non-Destructive Impulse Excitation Technique for 3D Printing FDM Polyamide Materials in Bending Mode
25 juillet 2025, Jabri, Fatima-Ezzahrae; Ochana, Imi; Ducobu, François; El Alaiji, Ra; DEMARBAIX, Anthonin, HE Condorcet
Article scientifiqueAbstract : "The presented article analyzes the impact of internal defects on the modal responses of polyamide parts subjected to bending. Samples with defects of various sizes (0, 3, 5, 7, and 10 mm) located at the neutral bending line were tested. Modal properties were measured via an acoustic and a vibration sensor, using impulse excitation and fast Fourier transform (FFT) analysis. Modal properties ... -
A Comparative Study of Non-Destructive Testing Techniques: Active Thermography versus Shearography for 3D-Printed Thermoplastic Composites Reinforced with Continuous Carbon Fiber
11 octobre 2024, Ochana, Imi; Ducobu, François; Khalil Omrani, Mohamed; Notebaert, Arnaud; DEMARBAIX, Anthonin, HE Condorcet
Article scientifiqueAbstract: "This study investigates the feasibility and effectiveness of two non-destructive testing methods, active thermography and shearography, on 3D-printed thermoplastic (TP) composites reinforced with continuous carbon fiber. Artificial defects were introduced into the composite plate to benchmark the detection capabilities of these non-destructive testing techniques (NDT). Active thermography ... -
Design of experiment on smart materials: tensile test on 3D printed composites reinforced with continuous carbon fiber and resistivity detection
05 juillet 2025, Ochana, Imi; Ducobu, François; Homrani, Mohamed Khalil; DEMARBAIX, Anthonin, HE Condorcet
Acte de conférence ou de colloqueDans le cadre de la 28e "International ESAFORM Conference on Material forming", du 7 au 9 mai 2025 à Paestum en Italie. Abstract : "Structural Health Monitoring (SHM) refers to the process of continuously assessing the condition of materials and structures to detect damage, degradation, or performance changes over time. It uses sensors integrated into materials to monitor their behavior, enabling ... -
Framework for determining and simulating tensile properties of smart composite FDM printed parts
07 mai 2025, Homrani, Mohamed Khalil; DEMARBAIX, Anthonin; Ochana, Imi; Ducobu, François, HE Condorcet
Acte de conférence ou de colloqueAbstract : "Fused deposition modeling (FDM) is an additive manufacturing technique with good precision and moderate tolerances. Utilizing Finite Element Analysis (FEA) in literature is now key to studying the properties of these printed parts. The nature of the FDM process results in anisotropic inner structures with microscopic voids that are heavily affected by printing parameters. Even more so ...