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Determination of elastic properties for a wound oxide ceramic composite

Shi, Yuan and Hofmann, Severin and Jemmali, Raouf and Hackemann, Stefan and Koch, Dietmar (2014) Determination of elastic properties for a wound oxide ceramic composite. Journal of Ceramic Science and Technology, 05 (01), pp. 31-38. Göller Verlag. doi: 10.4416/JCST2013-00028. ISSN 2190-9385.

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Abstract Thanks to its low cost and high flexibility, in the last few years the winding technique has been successfully adapted for the production of complex Ceramic Matrix Composite (CMC) components with load-oriented fibre alignment. Since the winding angle can be adjusted in any direction (from 0° to 90°) during the fabrication process, it is important for the design of components to evaluate the elastic properties of CMCs as a function of the winding angle. In this study, an inverse method based on the Classic Laminate Theory (CLT) has been used for the prediction of the elastic properties, i.e. Young’s modulus, shear modulus and Poisson’s ratio, for a wound oxide CMC material, called WHIPOX® (Wound HIghly Porous OXide ceramic matrix composite). For this purpose the characteristics of an equivalent unidirectional layer (UD-layer) with consideration of fibre volume content (FVC) and porosity were calculated. On the basis of microstructural analysis the computed WHIPOX®UDproperties have been divided into two sets of elastic properties for small (below 30°) and large winding angles (30° and above). Full coverage of the mechanical properties in different wound orientations, non-orthogonal with ±3°/±87°, ±15°/±75°, ±30°/±60° and orthogonal with ±45° and 0°/90°, were evaluated with in-plane tension, and Iosipescu-shear tests. A good correlation between experimental and analytically calculated results is shown in this paper.

Item URL in elib:https://elib.dlr.de/87296/
Document Type:Article
Title:Determination of elastic properties for a wound oxide ceramic composite
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Shi, Yuanyuan.shi (at) dlr.deUNSPECIFIED
Hofmann, Severinseverin.hofmann (at) dlr.deUNSPECIFIED
Jemmali, Raoufraouf.jemmali (at) dlr.deUNSPECIFIED
Hackemann, Stefanstefan.hackemann (at) dlr.deUNSPECIFIED
Koch, Dietmardietmar.koch (at) dlr.deUNSPECIFIED
Date:March 2014
Journal or Publication Title:Journal of Ceramic Science and Technology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.4416/JCST2013-00028
Page Range:pp. 31-38
Publisher:Göller Verlag
Keywords:Ceramic matrix composite, fibre orientation, elastic properties, inverse laminate theory, equivalent unidirectional layer
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion and Use (old)
HGF - Program Themes:Power Plants (old)
DLR - Research area:Energy
DLR - Program:E VG - Combustion and Gas Turbine Technologies
DLR - Research theme (Project):E - Gasturbine (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Ceramic Composite Structures
Deposited By: Shi, Dr.-Ing. Yuan
Deposited On:11 Jun 2014 10:49
Last Modified:24 Jun 2015 03:03

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