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Determination and Modeling of Bending Properties for Continuous Fiber Reinforced C/C-SiC Sandwich Structure with Grid Core

Shi, Yuan and Dileep, Pranav Kumar and Heidenreich, Bernhard and Koch, Dietmar (2018) Determination and Modeling of Bending Properties for Continuous Fiber Reinforced C/C-SiC Sandwich Structure with Grid Core. Composite Structures, 204, pp. 198-206. Elsevier. DOI: 10.1016/j.compstruct.2018.07.086 ISSN 0263-8223

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Abstract

The sandwich structures based on continuous fiber reinforced grid cores and skin panels have been developed via Liquid Silicon Infiltration (LSI) and in situ joining methods. Because of its excellent specific stiffness and temperature resistance, these lightweight structures have a sound potential for various application areas such as aerospace and construction industries. In this study, the characterization of the mechanical performance of grid core structures for continuous fiber reinforced C/C-SiC sandwich composites under four-point-bending load is presented. The effective bending and shear stiffness and the deflection at mid-span of the sandwich structure are determined and compared through experimental, analytical and FE-simulation (Finite Element simulation) approaches. The comparison showed good correlation. The analytical and FE-simulation approaches have been further used to study the parameter effects and the influence of the different grid core structures on the bending properties respectively. The proposed different approaches are suitable to determine and simulate the mechanical properties of C/C-SiC sandwich structures and are versatile tools for further product development.

Item URL in elib:https://elib.dlr.de/121187/
Document Type:Article
Title:Determination and Modeling of Bending Properties for Continuous Fiber Reinforced C/C-SiC Sandwich Structure with Grid Core
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Shi, Yuanyuan.shi (at) dlr.deUNSPECIFIED
Dileep, Pranav Kumarpranavkumar.dileep (at) dlr.deUNSPECIFIED
Heidenreich, Bernhardbernhard.heidenreich (at) dlr.deUNSPECIFIED
Koch, Dietmardietmar.koch (at) dlr.deUNSPECIFIED
Date:2018
Journal or Publication Title:Composite Structures
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:204
DOI :10.1016/j.compstruct.2018.07.086
Page Range:pp. 198-206
Publisher:Elsevier
ISSN:0263-8223
Status:Published
Keywords:ceramic matrix composite; sandwich structure; C/C-SiC; bending properties; characterization; simulation
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
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Ceramic Composite Structures
Deposited By: Shi, Yuan
Deposited On:09 Aug 2018 13:30
Last Modified:09 Aug 2018 13:30

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