Blar i NTNU Open på forfatter "Grammatikos, Sotirios"
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Pumpesump med integrert forankring
Josefsen, Henning; Pettersen, Liss-Anne N.; Skinlo, Marius Eilertsen (Bachelor thesis, 2019)Avløpspumpestasjoner brukes for å transportere avløps- og spillvann fra husholdninger, industri og annen virksomhet til avløpsrenseanlegg. Her blir avløpsvannet renset før vannet slippes tilbake til naturen. Pumpesumpen, ... -
Recovery of electronic wastes as fillers for electromagnetic shielding in building components: An LCA study
La Rosa, Angela Daniela; Grammatikos, Sotirios; Ursan, George Andrei; Aradoaei, Sebastian; Summerscales, John; Ciobanu, Romeo Cristian; ; Schreiner, Cristina Mihaela (Peer reviewed; Journal article, 2020)The present study reports the development of sandwich panels for building walls having electromagnetic interference (EMI) shielding abilities. Conductive polymer composites (CPCs) have started being employed as EMI shielding ... -
Recycled Wood Plastic Composites as Floor Panels for Ship Containers
Grammatikos, Sotirios; Jøsendal, Harald Bertin; Papatzani, Styliani; Boura, Orsa; Hajmohammadian Baghban, Mohammad (Peer reviewed; Journal article, 2020)Within the framework of this study, we aim at the replacement of plywood as ship containers floor material, with a lighter and friendlier-to-rainforests composite material. Wood fibre-reinforced thermoPlastic Composites ... -
Silicon Carbide Nanoparticles as a Mechanical Boosting Agent in Material Extrusion 3D-Printed Polycarbonate
Petousis, Markos; Vidakis, Nectarios; Mountakis, Nikolaos; Grammatikos, Sotirios; Papadakis, Vassilis; David, Constantine N.; Moutsopoulou, Amalia; Das, Subrata Chandra (Peer reviewed; Journal article, 2022)In this work, the effect of silicon carbide (carborundum, SiC), as a boosting agent of the mechanical response of the polycarbonate (PC) polymer, was investigated. The work aimed to fabricate nanocomposites with an improved ... -
Surface roughness of as-printed polymers: a comprehensive review
Payami Golhin, Ali; Tonello, Riccardo; Frisvad, Jeppe Revall; Grammatikos, Sotirios; Strandlie, Are (Peer reviewed; Journal article, 2023)Surface roughness is gaining increasing recognition in the processing design methods of additive manufacturing (AM) due to its role in many critical applications. This impact extends not only to various AM product manufacturing ... -
Sustainable Additive Manufacturing: Mechanical Response of Polyethylene Terephthalate Glycol over Multiple Recycling Processes
Vidakis, Nectarios; Petousis, Markos; Tzounis, Lazaros; Grammatikos, Sotirios; Porfyrakis, Emmanouil; Maniadi, Athena; Mountakis, Nikolaos (Journal article; Peer reviewed, 2021) -
Sustainable reinforced concrete design of structural walls
Grammatikos, Sotirios; Papatzani, Styliani; Giannakis, Ioannis; Kotsovos, Michael D; Das, Subrata Chandra (Peer reviewed; Journal article, 2021)Sustainability calls for reduction in the use of natural resources and man-made materials. In light of this, the present study demonstrates the potentials of the reduction of transverse reinforcement in structural walls. ... -
Theoretical and Experimental Determination of Thermomechanical Properties of Epoxy-SiO2 Nanocomposites
Adnan, Mohammed Mostafa; Kroyan, Arpenik; Srivastava, Chaman; Grammatikos, Sotirios; Glaum, Julia; Ese, Marit-Helen Glomm; Schnell, Sondre Kvalvåg; Einarsrud, Mari-Ann (Peer reviewed; Journal article, 2023)Improvements in the thermomechanicalproperties of epoxy upon inclusion of well-dispersed SiO2nanoparticles have been demonstrated both experimentally and through molecular dynamics simulations.The SiO2was represented by ... -
Three-Dimensional (3D) Conductive Network of CNT-Modified Short Jute Fiber-Reinforced Natural Rubber: Hierarchical CNT-Enabled Thermoelectric and Electrically Conductive Composite Interfaces
Tzounis, Lazaros; Petousis, Markos; Liebscher, Marco; Grammatikos, Sotirios; Vidakis, Nectarios (Peer reviewed; Journal article, 2020)Jute fibers (JFs) coated with multiwall carbon nanotubes (MWCNTs) have been introduced in a natural rubber (NR) matrix creating a three-dimensional (3D) electrically conductive percolated network. The JF-CNT endowed ... -
Three-Dimensional Analysis of Porosity in As-Manufactured Glass Fiber/Vinyl Ester Filament Winded Composites Using X-Ray Micro-Computed Tomography
Srivastava, Chaman; Agostino, Pietro; Stamopoulos, Antonios G.; Alcock, Benjamin; Strandlie, Are; Grammatikos, Sotirios (Peer reviewed; Journal article, 2023)Filament winding is a technique to manufacture tubular composite structures and, therefore, is among the most appealing techniques for fabricating critical structures such as hollow tubes. Despite the recent advances, these ... -
Utvikling av materialer for additiv produksjon, med selvrensende og antimikrobielle egenskaper.
Nazari, Elaha (Bachelor thesis, 2022)Formål: Formål med denne oppgaven var å undersøke de antimikrobielle egenskapene til fotosensitive resin impregnert med CNTs og Ag-partikler, for bruk i medisinske proteser. Printbarheten, de mekaniske egenskapene og de ... -
Utvikling av subsea støttekonstruksjon i polyuretan
Nielsen, Anders; Dokke, Gina; Jogerud, Antony (Bachelor thesis, 2019)EAB Engineering AS er produsent av blindflenser som benyttes til forsegling av sammenkoblingspunkter i undervannsinstallasjoner, eller som andre barriere for å hindre lekkasje av hydrokarboner i omgivelsene. Blindflensen ... -
Viskoelastisk karakterisering av fiberarmert epoksy
Pettersen, Vegard Gjestrumbakken; Stadeløkken, Adrian (Bachelor thesis, 2022)Nammo hadde et ønske om å kartlegge materialegenskaper for ulike viklede fiberarmerte epoksyer, og blant egenskapene var de viskoelastiske egenskapene særlig interessante. Formålet med oppgaven var å kartlegge de viskoelastiske ...