Fine ceramics (advanced ceramics, advanced technical ceramics) - Test method for compressive behaviour of continuous fibre-reinforced composites at room temperature (ISO 20504:2006)

ISO 20504:2006 describes procedures for determination of the compressive behaviour of ceramic matrix composite materials with continuous fibre reinforcement at room temperature. This method applies to all ceramic matrix composites with a continuous fibre reinforcement, uni-directional , bi-directional, and tri-directional, tested along one principal axis of reinforcement. This method may also be applied to carbon-fibre-reinforced carbon matrix composites (also known as: carbon/carbon or C/C). Two cases of testing are distinguished: compression between platens and compression using grips.

Hochleistungskeramik - Bestimmung der Eigenschaften unter Druck von endlosfaserverstärkten Verbundwerkstoffen bei Raumtemperatur (ISO 20504:2006)

Diese Internationale Norm beschreibt Verfahren zur Bestimmung der Eigenschaften unter Druck von endlosfaserverstärkten Verbundwerkstoffen mit keramischer Matrix bei Raumtemperatur. Dieses Verfahren gilt für alle keramischen Verbundwerkstoffe mit unidirektionaler (1D), bidirektionaler (2D) und mehrdirektionaler (xD, mit 2 < x ≤ 3) Endlosfaserverstärkung, die parallel zu einer der Haupt-verstärkungsachsen beansprucht werden. Dieses Verfahren darf außerdem bei kohlen¬stoff¬faser¬verstärkten Verbundwerkstoffen mit Kohlenstoffmatrix (auch als Kohlenstoff/Kohlenstoff oder C/C bezeichnet) angewendet werden. Es werden zwei Fälle von Prüfungen unterschieden: Druckbeanspruchung zwischen Platten und Druckbeanspruchung unter Verwendung von Einspann¬einrichtungen.

Céramiques techniques - Méthode d'essai de résistance à la compression des composites renforcés de fibres continues à température ambiante (ISO 20504:2006)

L'ISO 20504:2006 décrit des méthodes permettant de déterminer les caractéristiques en compression des matériaux composites à matrice céramique avec renfort de fibres continues à température ambiante. La présente Norme internationale s'applique à tous les composites à matrice céramique avec renfort de fibres continues, unidirectionnel (1D), bidirectionnel (2D), et tridirectionnel (xD, avec 2 < x ≤ 3), sollicités suivant un axe principal de renfort. Elle peut également s'appliquer aux composites à matrice de carbone avec renfort de fibres de carbone (également connus en tant que carbone/carbone ou C/C). Deux cas de compression sont distingués: la compression entre plateaux et la compression entre mors.

Fina keramika (sodobna keramika, sodobna tehnična keramika) - Metoda za preskušanje tlačnih lastnosti kompozitov, ojačenih z neskončno dolgimi vlakni, pri sobni temperaturi (ISO 20504:2006)

Ta mednarodni standard opisuje postopke za določanje vedenja keramičnih matričnih kompozitnih materialov z neprekinjeno ojačitvijo vlaken pri stiskanju pri sobni temperaturi. Ta metoda se uporablja za vse keramične matrične kompozite z neprekinjeno ojačitvijo vlaken, enosmerno (1D), dvosmerno (2D) in trismerno (xD, kjer je 2 < x ≤ 3), preskušenih vzdolž ene glavne osi ojačitve. Ta metoda se lahko uporabi tudi za karbonske matrične kompozite s karbonskimi vlakni (imenovane tudi: karbon/karbon ali C/C). Razlikujemo med dvema primeroma preskušanja: stiskanje med stiskalnimi valji in stiskanje z ročaji.

General Information

Status
Withdrawn
Publication Date
19-Apr-2016
Withdrawal Date
24-Sep-2019
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
25-Sep-2019

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Fine ceramics (advanced ceramics, advanced technical ceramics) - Test method for
compressive behaviour of continuous fibre-reinforced composites at room temperature
(ISO 20504:2006)
Hochleistungskeramik - Bestimmung der Eigenschaften unter Druck von
endlosfaserverstärkten Verbundwerkstoffen bei Raumtemperatur (ISO 20504:2006)
Céramiques techniques - Méthode d'essai de résistance à la compression des
composites renforcés de fibres continues à température ambiante (ISO 20504:2006)
Ta slovenski standard je istoveten z: EN ISO 20504:2016
ICS:
81.060.30 Sodobna keramika Advanced ceramics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 20504
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2016
EUROPÄISCHE NORM
ICS 81.060.30 Supersedes EN 658-2:2002
English Version
Fine ceramics (advanced ceramics, advanced technical
ceramics) - Test method for compressive behaviour of
continuous fibre-reinforced composites at room
temperature (ISO 20504:2006)
Céramiques techniques - Méthode d'essai de résistance Hochleistungskeramik - Bestimmung der
à la compression des composites renforcés de fibres Eigenschaften unter Druck von endlosfaserverstärkten
continues à température ambiante (ISO 20504:2006) Verbundwerkstoffen bei Raumtemperatur (ISO
20504:2006)
This European Standard was approved by CEN on 25 March 2016.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20504:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 20504:2006 has been prepared by Technical Committee ISO/TC 206 “Fine ceramics” of
the International Organization for Standardization (ISO) and has been taken over as EN ISO 20504:2016
by Technical Committee CEN/TC 184 “Advanced technical ceramics” the secretariat of which is held by
DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by October 2016, and conflicting national standards shall
be withdrawn at the latest by October 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN 658-2:2002.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 20504:2006 has been approved by CEN as EN ISO 20504:2016 without any modification.
INTERNATIONAL ISO
STANDARD 20504
First edition
2006-01-15
Fine ceramics (advanced ceramics,
advanced technical ceramics) — Test
method for compressive behaviour of
continuous fibre-reinforced composites
at room temperature
Céramiques techniques — Méthode d'essai de résistance à la
compression des composites renforcés de fibres continues à
température ambiante
Reference number
ISO 20504:2006(E)
©
ISO 2006
ISO 20504:2006(E)
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ii © ISO 2006 – All rights reserved

ISO 20504:2006(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references. 1
3 Terms and definitions. 1
4 Principle. 3
5 Apparatus. 4
5.1 Test machine. 4
5.2 Load train. 4
5.3 Strain measurement. 4
5.3.1 General. 4
5.3.2 Strain gauges. 4
5.3.3 Extensometry. 5
5.4 Data recording system . 5
5.5 Dimension measuring devices . 5
6 Test specimens. 5
6.1 General. 5
6.2 Compression between platens. 6
6.3 Test specimen used with grips . 7
7 Test specimen preparation . 10
7.1 Machining and preparation. 10
7.2 Number of test specimens. 10
8 Test procedure. 10
8.1 Test mode and rate. 10
8.2 Measurement of test specimen dimensions . 11
8.3 Buckling. 11
8.4 Testing technique . 11
8.4.1 Test specimen mounting . 11
8.4.2 Extensometers. 11
8.4.3 Measurements. 12
8.5 Test validity. 12
9 Calculation of results . 12
9.1 Test specimen origin. 12
9.2 Compressive strength. 12
9.3 Strain at maximum compressive force. 13
9.4 Proportionality ratio or pseudo-elastic modulus, elastic modulus . 13
9.5 Buckling stress. 14
9.6 Rounding of results. 14
9.7 Mean and standard deviation . 14
10 Test report. 15
Annex A (informative) Illustration of elastic modulus . 16
Annex B (normative) Alignment verification . 18
Annex C (normative) Compressive force limits to ensure ‘true’ compressive failure. 20

ISO 20504:2006(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn
...

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