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Interlaminar fracture of carbon fibre reinforced SiC under mode I and II loading: Determination of parameters and FE-modelling

Hofmann, Severin and Koch, Dietmar and Voggenreiter, Heinz (2013) Interlaminar fracture of carbon fibre reinforced SiC under mode I and II loading: Determination of parameters and FE-modelling. Material Science and Technology 2013, Conference and Exhibition, 27.-31.10.2013, Montreal, Canada. (Unpublished)

Full text not available from this repository.

Abstract

Abstract: The interlaminar energy release rates of carbon fibre reinforced SiC, were determined experimentally under mode I and II loading. The investigated CMC-material was produced from carbon fabrics by liquid silicon infiltration process. The interlaminar crack propagation was investigated on artificially pre-cracked samples. The cracks were orientated parallel to the 0/90°-fibre reinforcement. The standardized test geometries from CFRPs for Double Cantilever Beam- and End-Notched Flexure test were adapted to account for the CMC-specific material properties (low bending strength relative to the interlaminar fracture toughness). The experimental load deflection curves were evaluated in comparison with analytical results from LEFM and the results from Cohesive Zone FE-Modelling. A good correlation between experimental, analytical and numerical results was gained for the crack initiation in both crack opening modes. The deviation of the experimental crack propagation behaviour from the analytical and numerical results could be explained by the increase of fracture toughness during crack propagation.

Item URL in elib:https://elib.dlr.de/87464/
Document Type:Conference or Workshop Item (Speech)
Title:Interlaminar fracture of carbon fibre reinforced SiC under mode I and II loading: Determination of parameters and FE-modelling
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hofmann, Severinseverin.hofmann (at) dlr.deUNSPECIFIED
Koch, Dietmardietmar.koch (at) dlr.deUNSPECIFIED
Voggenreiter, HeinzHeinz.Voggenreiter (at) dlr.deUNSPECIFIED
Date:2013
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:CMC, fibre reinforced SiC, interlaminar fracture, cohesive zone elements, critical energy release rate
Event Title:Material Science and Technology 2013, Conference and Exhibition
Event Location:Montreal, Canada
Event Type:international Conference
Event Dates:27.-31.10.2013
Organizer:The American Ceramic Society (ACerS), Association for Iron & Steel Technology (AIST), ASM International, and The Minerals, Metals & Materials Society (TMS)
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 - Wiederverwendbare Raumfahrtsysteme und Antriebstechnologie
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Ceramic Composite Structures
Institute of Structures and Design > Leitungsbereich BT
Deposited By: Hofmann, Severin
Deposited On:14 Jan 2014 15:29
Last Modified:08 Sep 2017 11:36

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