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Modelling the Bending Test Behaviour of Carbon Fibre Reinforced SiC by Finite Element Method

Hofmann, Severin and Koch, Dietmar and Voggenreiter, Heinz (2012) Modelling the Bending Test Behaviour of Carbon Fibre Reinforced SiC by Finite Element Method. In: Proceedings of the 12th European Conference on Spacecraft Structrues, Materials and Environmental Testing on DVD. 12th European Conference on Spacecraft Structures, Materials & Environmental Testing, 20-23.3.2012, Noordwijk, Niederlande.

Full text not available from this repository.

Abstract

Liquid silicon infiltrated carbon fibre reinforced SiC, has shown to be a high-potential material for thermal protection systems. The tensile and bending behaviour of the ceramic-matrix composite, C/C-SiC, were investigated in varying orientations relative to the 0/90° woven carbon fibres. The ratio of bending to tensile strength was about 1.7 to 2 depending on the loading direction. With the goal to understand this large difference finite element analyses (FEA) of the bending tests were performed. The different stress-strain behaviour of C/C-SiC under tensile and compression load were included in the FEA. Additionally the bending failure of the CMC-material was modelled by Cohesive Zone Elements (CZE) accounting for the directional tensile strength and Work of Fracture (WOF). The WOF was determined by Single Edge Notched Bending (SENB) tests. Comparable results from FEA and bending test were achieved. The presented approach could also be adapted for the design of C/C-SiC-components and structures.

Item URL in elib:https://elib.dlr.de/79422/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Modelling the Bending Test Behaviour of Carbon Fibre Reinforced SiC by Finite Element Method
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hofmann, SeverinBK-KVSUNSPECIFIED
Koch, DietmarBK-KVSUNSPECIFIED
Voggenreiter, HeinzBKUNSPECIFIED
Date:20 March 2012
Journal or Publication Title:Proceedings of the 12th European Conference on Spacecraft Structrues, Materials and Environmental Testing on DVD
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:CMC, Work of Fracture, Cohesive Zone, FEA, Bending, Tensile, C/C-SiC
Event Title:12th European Conference on Spacecraft Structures, Materials & Environmental Testing
Event Location:Noordwijk, Niederlande
Event Type:international Conference
Event Dates:20-23.3.2012
Organizer:ESA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Propulsion 2020 / CFD und Simulation (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Ceramic Composite Structures
Deposited By: Hofmann, Severin
Deposited On:17 Dec 2012 15:06
Last Modified:17 Dec 2012 15:06

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