izpis_h1_title_alt

Izdelava in karakterizacija kompozitnih trakov iz ogljikovih vlaken s tehnologijo ciljnega nalaganja
ID Vidrih, Tadej (Author), ID Valentinčič, Joško (Mentor) More about this mentor... This link opens in a new window, ID Terrasi, Giovani (Co-mentor)

.pdfPDF - Presentation file, Download (5,14 MB)
MD5: 5C4BB0CC0910F58048B50A3565855B96

Abstract
Cilj magistrske naloge je določitev natezne in dinamične trdnosti kompozitnih trakov iz ogljikovih vlaken, ki so proizvedeni s tehnologijo ciljnega nalaganja snovi. Konvencionalno proizvedeni CFRP trakovi so standardna komponenta v gradbeništvu in navtiki, kjer so pogosto izpostavljeni cikličnim obremenitvam. Zaradi visoke dinamične trdnosti so ogljikova vlakna izvrstna za tovrstne produkte in aplikacije, le malo pa je znanega o dinamični trdnosti in utrujanju kompozitnih trakov. Raziskava na to temo je potekala na inštitutu Empa (Švica), kjer smo kompozitne trakove ogljikovih vlaken AS4 in matrice PA12 proizvedli z metodo ciljnega nalaganja snovi. V sklopu raziskave smo določili parametre procesa naknadne obdelave in karakterizirali material. Rezultati so pokazali zadovoljivo dinamično trdnost kompozitnih trakov, ki pa je za 8 % nižja od dinamične trdnosti konvencionalno proizvedenih CFRP trakov. Obravnavali smo razloge in predlagali možne nadaljnje izboljšave.

Language:Slovenian
Keywords:3D-tiskanje kompozitov, polimer ojačan z ogljikovimi vlakni, poliamid 12, kompozitni trak, karakterizacija materiala, natezna trdnost, dinamična trdnost
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[T. Vidrih]
Year:2021
Number of pages:XXVII, 79 str.
PID:20.500.12556/RUL-130063 This link opens in a new window
UDC:678.6:004.92:539.412(043.2)
COBISS.SI-ID:78746883 This link opens in a new window
Publication date in RUL:10.09.2021
Views:680
Downloads:33
Metadata:XML RDF-CHPDL DC-XML DC-RDF
:
Copy citation
Share:Bookmark and Share

Secondary language

Language:English
Title:Fused filament fabrication and characterisation of CFRP tension straps
Abstract:
The focus of this research is the investigation of the fatigue behaviour of unidirectional 3D-printed continuous carbon fibre reinforced polymer (CFRP) tension straps with polyamide matrix. Conventionally produced tension straps are established components in the mechanical as well as the civil engineering sector (e.g. rigging systems for sailing boats, cranes and first bridges). All the structures mentioned above are subjected to high fatigue loads and although it is commonly reported that carbon fibre reinforced polymers show excellent fatigue resistance, there is limited understanding about the behaviour of CFRP loop elements under such loads, especially in combination with fretting at the attachment points. Research on this topic was performed at Empa in the past decade with thermoset CFRP straps, but never with 3D-printed continuous CFRP straps with thermoplastic matrix. Preliminary results are presented in this master thesis, which show that the fatigue endurance limit for investigated 3D-printed CFRP strap design is acceptable, when compared to steel tendons. However, it is still 8 % lower than conventionally produced CFRP straps using out-of-autoclave unidirectional carbon fibre prepregs. Reasons for this and potential future improvements are discussed.

Keywords:3D-printing composites, carbon fibre reinforced polymer, polyamide 12, tension strap, material characterization, tensile strength, fatigue behaviour

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Back