Design and computational evaluation of the mechanical behavior of additively-manufactured SS316L disks with internal lattice structure using the finite element method

Vlogiannitis, Sotirios; Βλογιαννίτης, Σωτήριος

dc.contributor.author	Vlogiannitis, Sotirios	en
dc.contributor.author	Βλογιαννίτης, Σωτήριος	el
dc.date.accessioned	2024-07-30T09:07:59Z
dc.date.available	2024-07-30T09:07:59Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/59977
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.27673
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ελλάδα	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/gr/	*
dc.subject	Clutch Disk	en
dc.subject	Metamaterials	en
dc.subject	Compression	en
dc.subject	FEA	en
dc.subject	Additive Manufacturing	en
dc.subject	3D Design	en
dc.title	Design and computational evaluation of the mechanical behavior of additively-manufactured SS316L disks with internal lattice structure using the finite element method	el
heal.type	bachelorThesis
heal.classification	Design for Additive Manufacturing	en
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2024-04-01
heal.abstract	In response to the automotive industry's critical demands for enhanced lightweighting, widespread decentralized manufacturing capabilities, and meticulous precision optimization, this project embarks on the innovative redesign of clutch disk architecture extending its scope to a comparative analysis of lattice structure disks. The study delves into the mechanical properties of various disks by incorporating different lattice structures as infill. Different unit cells, including tetrahedral, BCC, and I-type, are meticulously designed using Fusion 360. This approach facilitates the creation of various disk configurations, specifically tailored for use in dry friction clutches while eliminating the need for a traditional bulk core, capitalizing on the latest breakthroughs in additive manufacturing. This pioneering design strategy seeks to amalgamate the superior features of both dry and wet friction clutches, thus contributing valuable insights to the clutch technology. A comprehensive Finite Element Analysis is constructed in ANSYS to analyze the response of the disk design to static loads, adopting the theory of uniform wear. Mechanical strength and stiffness in compressive direction are meticulously observed for each design. Key variables, including total deformation, equivalent elastic strain, equivalent stress, strain energy, and force reaction, are scrutinized. Through this collaborative effort, we aim to deepen our understanding of lattice structures, offering insights that will not only refine clutch disk design but also contribute to broader advancements in automotive engineering. Body-centered cubic (BCC) lattice models exhibit maximum deformation, while tetrahedral exhibits the least deformation. Notably, the BCC 50% configuration demonstrates a higher average deformation than the BCC 12% counterpart. Furthermore, I-type configurations exhibit lower elastic strain, while tetrahedral patterns display intermediate levels, elucidating the diverse deformation characteristics inherent in different lattice designs and densities. Within the BCC patterns, a direct correlation emerges between density and stress levels, where higher density corresponds to elevated maximum and average stress values, indicating a more pronounced structural response. In contrast, the I-type configurations reveal an inverse relationship, with higher density correlating with lower maximum and average stress levels. This underscores the critical role of geometric considerations in ensuring structural integrity and optimal performance. Additionally, strain energy and force reaction demonstrates a sharper increase in I-type configurations compared to BCC patterns as density rises. In summary, while each lattice configuration showcases unique deformation patterns, comparing maximum and average deformation values offers valuable insights into their structural behavior, contributing to a deeper understanding of their response to external forces and aiding optimization for diverse engineering applications.	en
heal.advisorName	Spitas, Vasileios	en
heal.committeeMemberName	Spitas, Vasileios	en
heal.committeeMemberName	Antoniadis, Ioannis	en
heal.committeeMemberName	Provatidis, Christoforos	en
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Μηχανολόγων Μηχανικών	el
heal.academicPublisherID	ntua
heal.fullTextAvailability	false