Engineering and Systems > Home > Journal
IncertFia - ISSN 2514-569X - © ISTE Ltd
Uncertainties and Reliability of Multiphysical Systems focuses on the advances in research and industry applied to the fields of optimization, reliability and the consideration of uncertainty in systems. This combination is the source of competitiveness between firms in the automobile, aerospace, civil engineering or defense industries.
The journal brings together contributions in the varied fields of systems optimization (uncertainty, reliability, optimal design and optimization, size calculation, shape, topology, multi-objective and metaheuristics). It also focuses on robustness and on optimal safety factors.
Incertitudes et fiabilité des systèmes multiphysiques s’intéresse aux avancées de la recherche et de l’industrie appliquées aux domaines de l’optimisation, de la fiabilité et de la prise en compte des incertitudes des systèmes. Ce couplage est à la base de la compétitivité des entreprises dans les secteurs de l’automobile, de l’aéronautique, du génie civil ou de la défense.
La revue regroupe les contributions dans les domaines variés de l’optimisation des systèmes (incertitude, fiabilité, conception optimale et optimisation, dimensionnement, forme, topologie, multi-objectif et métaheuristique). Elle s’intéresse également à la robustesse et aux facteurs de sécurité optimaux.
4th edition of the Moroccan Workshop on 3D Printing hosted by Hassan II University Library of Mohamed SEKKAT, Casablanca, 2024
The Moroccan Association of Additive Manufacturing and 3D Printing is an association dedicated among other things to the promotion of scientific research in the promising field of additive manufacturing and 3D printing in Morocco. The organization of workshops is one of the key strategies to achieve this goal.
This study investigates the effect of support infill angle and its density, transverse at 90°, inclined at 45°, axial direction at 0° and crossed filament by (0°/90°), (45°/-45°) and (0°/45°) on surface quality and mechanical properties using three different strategies. The surface roughness and flexural properties of the specimens are analysed and compared as well as the material waste and printing time. According to results of this study, the variations in the support infill angle resulted in diverse flexural strength and surface quality.
Over the last decade, there has been a large interest in the use of 3D printing to manufacture microfluidic devices, since it has the ability to circumvent traditional fabrication techniques limitations. These include being unable to really make complex three-dimensional architectures, expensive and time-consuming processes to change device designs, and difficulty transitioning from prototyping to mass production. In this literature review, we will look at the current trends in 3D printed microfluidics, as well as recent advances and new developments in fabrication techniques, materials, and applications. Integration of 3D printing in microfluidics research has helped in the rapid prototyping of fluidic channels and structures with high complexity at an effective cost. Applications of 3D printed microfluidics are described in the areas of healthcare, diagnostics, chemical synthesis, and biotechnology. This paper also delineates the challenges and future prospects of 3D printed microfluidics, giving insight into potential research directions and technological developments.
Particularly focusing on 4D printing, a technology enabling objects to transform over time. We explore smart materials, emphasizing moisture-responsive variants crucial for 4D printing. Notably, cellulose emerges as key, offering renewable and sustainable bio-based filaments. We detail the meticulous preparation of cellulose from sugarcane bagasse, obtaining high-purity fibers essential for 4D printing. These filaments exhibit versatile stiffness and moisture responsiveness, crucial for hygromorphic structures. Our proposed method integrates a codesign approach tailored for 4D printing, utilizing fused filament fabrication and cellulose-filled filaments. Through this investigation, we uncover cellulose’s potential in sensor technology and additive manufacturing, marking significant progress in responsive materials and 4D printing.
4th edition of the Moroccan Workshop on 3D Printing hosted by Hassan II University Library of Mohamed SEKKAT, Casablanca, 2024
The Moroccan Association of Additive Manufacturing and 3D Printing is an association dedicated among other things to the promotion of scientific research in the promising field of additive manufacturing and 3D printing in Morocco. The organization of workshops is one of the key strategies to achieve this goal.
Bimetals 3D printing is a state-of-the-art technology, in which process parameters and heat treatments play key roles on the mechanical, thermal and structural properties of components. Our research goal is to investigate the potential of 3D printing bimetallic materials for different component parts according to each need. The procedures used in evaluating the results are based on the laser power, scanning speed, layer thickness, and materials of both additive manufacturing and heat treatments. The materials which were studied encompass Inconel 718, GH4169, 316L chrome steel, Inconel 625 and Ti6Al4V-W7Ni3Fe. It also shows the scanning speed has a large effect on the mechanical properties of Inconel 718, the laser power value when the porosity of GH4169 is at the minimum. Suitable functional materials produced by WAAM and wire-arc additive manufacturing assembly with robust, defect-free interface Indeed one of the other key observations from this study was that thermal conductivity and mechanical properties change significantly with the processing of the material, this then also strengthens the rationale for optimizing manufacturing parameters. This research highlights the potential of researching on materials with gradient properties and numerical simulation in future development of additive manufacturing of bimetallic and related alloys.
In recent years, additive manufacturing has emerged as a revolutionary technology, opening up new design possibilities. In this article, we examine the redesign and optimization of a wrist splint topology for additive manufacturing techniques. By taking advantage of the capabilities of this advanced manufacturing method. This study proposes to improve the functionality, ergonomics and overall performance of the wrist splint. The design process includes customized measurements based on CT scan or 3d scan, 3D modeling, and simulation to ensure optimal fit and structural integrity of the device. After finite element analysis, we evaluate the mechanical properties of the topologically optimized design. The results confirm that the proposed approach offers significant improvements in raw material consumption while maintaining the strength and ventilation required for patient comfort. Compared with the solid splint, the weight of the optimized wrist and hand splint is reduced by 46%.
The additive manufacturing process known as Fused Deposition Modeling (FDM) is distinguished by numerous parameters to be set. These parameters determine the mechanical properties and the overall quality of the printed parts. Among these parameters, we are interested in the filament deposition temperature. Indeed, during the systematic printing of each layer, the filaments that compose it undergo fusion, both inside the layer itself and between successive layers. The quality of this welding process significantly influences the resistance to crack propagation, between filaments of the same layer and/or between superimposed layers. This article focuses on the study of the impact of deposition temperature on the resistance to crack propagation in structures created by FDM. An analysis based on the J-Integral approach is developed.
Editorial Board
Editor in Chief
Abdelkhalak EL HAMI
INSA Rouen
abdelkhalak.elhami@insa-rouen.fr
Co-Editors
Seifedine KADRY
American University of the Middle East
Koweït
skadry@gmail.com
Ghais KHARMANDA
Lund University
Suède
ghias.kharmanda@bme.lth.se
Philippe POUGNET
Valeo, Paris
philippe.pougnet@valeo.com
Bouchaïb RADI
University Hassan Premier, Settat
Maroc
bouchaib.radi@uhp.ac.ma