Πλευρική καταπόνηση μεταλλικών κελυφών υπό περιοριστικές συνθήκες

Διαρμίσης, Στυλιανός; Diarmisis, Stylianos

dc.contributor.author	Διαρμίσης, Στυλιανός	el
dc.contributor.author	Diarmisis, Stylianos	en
dc.date.accessioned	2018-03-14T10:41:06Z
dc.date.available	2018-03-14T10:41:06Z
dc.date.issued	2018-03-14
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/46691
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.15199
dc.rights	Default License
dc.subject	Πλευρική καταπόνηση	el
dc.title	Πλευρική καταπόνηση μεταλλικών κελυφών υπό περιοριστικές συνθήκες	el
heal.type	bachelorThesis
heal.secondaryTitle	Lateral loading at metallic swells under structural restrictions	en
heal.classification	Κατεργασίες υλικών	el
heal.classificationURI	http://data.seab.gr/concepts/12ca5151411399c77d21d70b67b67a46b688b242
heal.language	el
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2017-10-30
heal.abstract	Στην παρούσα διπλωματική εργασία μελετάται η καταπόνηση μεταλλικών κυλινδρικών κελυφών (σωλήνων) αλουμινίου σε πλευρική θλίψη με κυλινδρικό διεισδυτή παράλληλο προς τον άξονα του δοκιμίου, υπό περιοριστικές συνθήκες.	el
heal.abstract	In this thesis, we study aluminum cylindrical shells (tubes) exposed to lateral compression by a cylindrical indenter, placed parallel to the long axis of the specimen. This dissertation focuses on the lateral-compression behaviour of cylindrical thin-walled tubes, side-constrainted by tube holders of different angles. Various experimental tests took place, where the energy dissipation is measured at each mechanical loading experiment. First, energy absorption systems are outlined and the proper technical nomenclature is introduced and explained. The employed equipment of the Laboratory of Manufacturing Technology of the National Technical University of Athens (NTUA) is briefly presented as well. Energy absorbers consisting of metallic cylindrical tubes are integral components of vehicles’ passive safety, as their role in mitigating crash forces is vital. As a result, the design and development of such systems is of high importance both in academia and automotive industry. A concise description of the lateral collapse process follows accompanied by a short review of the related literature. nd In the 2 chapter, we display the experimental results and draw conclusions regarding the effects of the specimen thickness and the angle of the tube holder. Load - deflection curves are recorded, whereas average load and energy absorption are computed for every specimen and compared to each other. rd In the 3 chapter, we compare the results of tests employing the same type (angle) of tube holder and important conclusions are reported. Finally ,we make suggestions for future research.	en
heal.advisorName	Μανωλάκος, Δημήτριος	el
heal.committeeMemberName	Μανωλάκος, Δημήτριος	el
heal.committeeMemberName	Βοσνιάκος, Γεώργιος Χριστόφορος	el
heal.committeeMemberName	Μακρόπουλος, Χρήστος	el
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Μηχανολόγων Μηχανικών. Τομέας Τεχνολογίας των Κατεργασιών	el
heal.academicPublisherID	ntua
heal.numberOfPages	84 σ.
heal.fullTextAvailability	true