Browsing NTNU Open by Author "Razavi, Nima"
Now showing items 1-10 of 10
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Core-shell nanofibers for developing self-healing materials: Recent progress and future directions
Esmaeely Neisiany, Rasoul; Nouri Khorasani, Saied; Kong Yoong Lee, Jeremy; Razavi, Nima; Enayati, Mohammad Saeid; Naeimirad, Mohammadreza; Berto, Filippo; Ramakrishna, Seeram (Peer reviewed; Journal article, 2021)The knowledge of self-healing was developed to ensure more durable and reliable engineering materials. Healing agent encapsulation has shown to be one of the most promising approaches in self-healing technology. The healing ... -
Design and mechanical characterization of 3D printed components with tailored geometry for enhanced mechanical performance
Constantinou, Alf Mikael (Master thesis, 2023)Biomimetikk tilbyr et betydelig potensial til å gi unike løsninger innen materialvitenskap. Det fulle potensialet ved å etterligne naturlige systemer kan utnyttes kun hvis vi betrakter problemet med design av komplekse ... -
The effect of surface treatment and orientation on fatigue crack growth rate and residual stress distribution of wire arc additively manufactured low carbon steel components
Ermakova, Anna; Razavi, Nima; Cabeza, Sandra; Gadalinska, Elzbieta; Reid, Mark; Paradowska, Anna; Ganguly, Supriyo; Berto, Filippo; Mehmanparast, Ali (Peer reviewed; Journal article, 2023)The directed energy deposition (DED) processes, such as laser metal deposition or Wire Arc Additive Manufacturing (WAAM), are gradually becoming the preferred method for fabrication of large-scale components using metal ... -
An Environmental Decision Support System for Determining On-site or Off-site Additive Manufacturing of Spare Parts
Demiralay, Enes; Razavi, Nima; Kucukkoc, Ibrahim; Peron, Mirco (Chapter, 2023)Effective spare part management can increase the competitiveness of supply chains, but the intrinsic characteristics of spare parts (e.g., intermittent demands, dependence on suppliers) make their effective management ... -
Experimental and numerical evaluations of ultra-light uniform lattice structures under quasi-static loading conditions
Austdal, Nikolai (Master thesis, 2023)Nylig har det vært en økning i interesse for 3D-printet TPMS gitterstrukturer. Utviklingen av 3D-printet produksjon har gjort det mulig å fremstille komplekse strukturer med særegne egenskaper. Tre typer gitterstrukturer ... -
Influence of prior corrosion on the fatigue behavior of recycled Al
Tråstadkjølen, Simen Ulleberg (Master thesis, 2024)Denne masteroppgaven undersøker påvirkningen av tidligere korrosjon på høysyklusutmattingsoppførselen til en resirkulert 6082 aluminiumslegering. Resirkulert aluminium har typisk høyt innhold av uønskede forurensningselementer ... -
Metallurgical characterization of 3D-printed metal components
Couto, Sara Patricia Pereira (Master thesis, 2023)3D-pinting tilbyr en lovende metode for å skape komplekse former ved bruk av ulike materialer, der stålkomponenter typisk brukes i applikasjoner som krever høy styrke på grunn av deres store styrke og motstand mot utmattelse. ... -
Structural Integrity of Metamaterials Fabricated by Additive Manufacturing
Xu, Zhuo (Doctoral theses at NTNU;2024:273, Doctoral thesis, 2024)Additive Manufacturing (AM) or 3D printing, represents a revolutionary shift in production technology by enabling the construction of complex geometries that were previously infeasible with traditional manufacturing methods. ... -
A study on the influence of impurity content on fatigue endurance in a 6082 Al-alloy
Sarkar, Aritra; Aktunali, Mehmet; Arbo, Siri Marthe; Holmestad, Jon; Viespoli, Luigi Mario; Nyhus, Bård; Ringen, Geir; Razavi, Nima (Peer reviewed; Journal article, 2024)The paper investigates the influence of different impurity/scrap elements on the high cycle fatigue (HCF) properties of 6082 Al-alloy. Accordingly, HCF tests are carried out on the different variants- GA1, GA2 and GA3 ... -
Topology optimization on metamaterial cells for replacement possibility in non-pneumatic tire and the capability of 3D-printing
Dezianian, Shokouh; Azadi, Mohammad; Razavi, Nima (Peer reviewed; Journal article, 2023)One of the applications of mechanical metamaterials is in car tires, as a non-pneumatic tire (NPT). Therefore, to find a suitable cell to replace the pneumatic part of the tire, three different solution methods were used, ...