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Characterization and modeling of bending properties of continuous fiber reinforced C/C-SiC sandwich structure

Shi, Yuan and Heidenreich, Bernhard and Koch, Dietmar (2019) Characterization and modeling of bending properties of continuous fiber reinforced C/C-SiC sandwich structure. 10th International Conference on High Temperature Ceramic-Matrix Composites (HT-CMC 10), Sep. 2019, Bordeaux, French. (Unpublished)

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Abstract

Due to their excellent stiffness-to-weight ratio, sandwich structures are considered as typical lightweight structure and have been widely used in aerospace and construction industries. Compared to traditional sandwich structures made of cardboard, aluminum and polymer material, sandwich structures based on ceramic matrix composites (CMCs) can achieve significantly higher service temperatures and longer lifetime. In this study, the sandwich structures based on continuous fiber reinforced cores and skin panels have been developed via Liquid Silicon Infiltration (LSI) and in-situ joining methods. For FE-simulation (Finite Element simulation), a realistic model was developed, and the mechanical performance of C/C-SiC sandwich structures under four-point-bending was analyzed. Bending and shear stiffness of the sandwich structures were determined by FE-simulation and analytical methods. The results obtained by modeling approaches were compared with experimental results and 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 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 applicable for further product development.

Item URL in elib:https://elib.dlr.de/131298/
Document Type:Conference or Workshop Item (Speech)
Title:Characterization and modeling of bending properties of continuous fiber reinforced C/C-SiC sandwich structure
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Shi, Yuanyuan.shi (at) dlr.dehttps://orcid.org/0000-0002-4210-9069
Heidenreich, BernhardBernhard.Heidenreich (at) dlr.deUNSPECIFIED
Koch, DietmarDietmar.Koch (at) dlr.dehttps://orcid.org/0000-0003-4504-8721
Date:September 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:ceramic matrix composite; sandwich structure; C/C-SiC; bending properties; characterization; simulation
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
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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