Homogenization of composite materials with X-FEM (Extended Finite Elements Method)

Χρόνη, Ευσταθία; Chroni, Efstathia

dc.contributor.author	Χρόνη, Ευσταθία	el
dc.contributor.author	Chroni, Efstathia	en
dc.date.accessioned	2021-03-08T13:25:28Z
dc.date.available	2021-03-08T13:25:28Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/52982
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.20680
dc.description	Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία. Διεπιστημονικό-Διατμηματικό Πρόγραμμα Μεταπτυχιακών Σπουδών (Δ.Π.Μ.Σ.) “Υπολογιστική Μηχανική”	el
dc.rights	Default License
dc.subject	Επεκτεταμένα πεπερασμένα στοιχεία	el
dc.subject	Ομογενοποίηση	el
dc.subject	Συνεκτικότητα	el
dc.subject	Διεπιφάνειες υλικών	el
dc.subject	Σύνθετα υλικά	el
dc.subject	Extended finite elements method	en
dc.subject	Homogenization	en
dc.subject	Cohesive	en
dc.subject	Material interfaces	en
dc.subject	Composite materials	en
dc.title	Homogenization of composite materials with X-FEM (Extended Finite Elements Method)	en
heal.type	masterThesis
heal.classification	Υπολογιστική Μηχανική	el
heal.classification	Computational Mechanics	en
heal.language	en
heal.access	campus
heal.recordProvider	ntua	el
heal.publicationDate	2021-02-12
heal.abstract	The implementation of extended-finite elements method to model composites materials is presented. The need of conforming the finite element mesh to the geometry of material interfaces is avoided through this method. As a result, the description for the discontinuous field is totally mesh-independent. Enrichment functions can be used to locally incorporate known behavior into the polynomial approximation of traditional FEM. Moreover, the impact of cohesive traction on material interfaces is examined. Finally, the homogenization takes place to evaluate the parameters of the effective behavior of the macroscopic composite material by adopting a microscopic Representative Elementary Volume (RVE). A selection of different cases are modelled using MATLAB code to implement the described method and theory. In applications 1 and 2, the figures were generated using the post-processing and XFEM features of MSolve, an open-source software for computational mechanics, developed by the numerical simulation lab MGroup of the Civil Engineering School at the National Technical University of Athens.	en
heal.advisorName	Papadopoulos, Vissarion	el
heal.committeeMemberName	Spiliopoulos, Konstantinos	en
heal.committeeMemberName	Triantafyllou, Savvas	en
heal.committeeMemberName	Papadopoulos, Vissarion	en
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Χημικών Μηχανικών	el
heal.academicPublisherID	ntua
heal.numberOfPages	103 σ.	el
heal.fullTextAvailability	false