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Design, manufacture and testing of an alloxide fiber reinforced fan blade

Koch, Dietmar and Shi, Yuan and Pritzkow, Walter and Holzdeppe, D. and Janssen, R. (2019) Design, manufacture and testing of an alloxide fiber reinforced fan blade. 10th International Conference on High Temperature Ceramic-Matrix Composites (HT-CMC 10), Sep. 2019, Bordeaux, French. (Unpublished)

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Alloxide fiber reinforced composites are well known for their damage tolerant behavior up to temperatures of 1000°C. These properties make them attractive for various industrial applications, not only under extreme conditions but also at moderate temperatures when the overall properties are beneficial. One example is a hot gas rotor which will be used in rough industrial processes especially with gas temperature of also far above 600 °C and which must withstand temperature and erosion under long term conditions. In this framework a fan blade prototype was designed, manufactured, tested and evaluated via finite element analysis. First, prepregs are developed from oxide ceramic slurries and oxide fibers. These prepregs enable series production as they can be produced in a reproducible quality and can be stored until being used for manufacturing of components. In order to achieve the mechanical properties of the basic material test coupons were made via stacking of the prepregs and final sintering. With these input data a blade prototype including blade root was designed considering application relevant loads as rotation and aerodynamic resistance. The resulting design was optimized via finite element analysis including the anisotropic layered structure of the alloxide composites. As result a simple wedge design with a complex prepreg lay-up was chosen for a form fit of the blade root in a metallic collar. The fan blade was then produced from the prepregs and sintered in a one piece design. The mechanical proof test of the blade root fixation design was performed in a high velocity centrifuge up to failure. The results were evaluated and compared with the finite element prediction.

Item URL in elib:https://elib.dlr.de/131300/
Document Type:Conference or Workshop Item (Speech)
Title:Design, manufacture and testing of an alloxide fiber reinforced fan blade
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Koch, DietmarDietmar.Koch (at) dlr.dehttps://orcid.org/0000-0003-4504-8721
Shi, Yuanyuan.shi (at) dlr.dehttps://orcid.org/0000-0002-4210-9069
Pritzkow, Walterpritzkow-wps (at) keramikblech.comUNSPECIFIED
Date:September 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Design, manufacture, testing,alloxide fan blade
Event Title:10th International Conference on High Temperature Ceramic-Matrix Composites (HT-CMC 10)
Event Location:Bordeaux, French
Event Type:international Conference
Event Dates:Sep. 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Ceramic Composite Structures
Deposited By: Shi, Dr.-Ing. Yuan
Deposited On:28 Nov 2019 11:01
Last Modified:28 Nov 2019 11:01

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