BS EN 1007-7-2010 Advanced technical ceramics n Ceramic composites n Methods of test for nreinforcements nPart 7 Determination of the distribution nof tensile strength and of tens.pdf
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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 1007-7:2010Advanced technical ceramics Ceramic composites Methods of test forreinforcementsPart 7: Determination of the distributionof tensile strength and of tensile strai
2、n tofailure of filaments within a multifilamenttow at high temperatureBS EN 1007-7:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 1007-7:2010.The UK participation in its preparation was entrusted to TechnicalCommittee RPI/13, Advanced technical ceramics.A
3、list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 69222 2ICS 81.060.30Compliance with a Britis
4、h Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 2010Amendments issued since publicationDate Text affectedAugustEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1007-7 July 2010 ICS
5、 81.060.30 Supersedes CEN/TS 1007-7:2006English Version Advanced technical ceramics - Ceramic composites - Methods of test for reinforcements - Part 7: Determination of the distribution of tensile strength and of tensile strain to failure of filaments within a multifilament tow at high temperature C
6、ramiques techniques avances - Cramiques composites - Mthodes dessai pour renforts - Partie 7: Dtermination de la distribution de la rsistance en traction et de la dformation de traction la rupture des filaments dans un fil haute temprature Hochleistungskeramik - Keramische Verbundwerkstoffe - Verfah
7、ren zur Prfung der Faserverstrkungen - Teil 7: Bestimmung der Verteilung von Zugfestigkeit und Zugdehnung von Fasern im Faserbndel bei hoher Temperatur This European Standard was approved by CEN on 4 June 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate
8、 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 Management Centre or to any CEN member. This European Standard exis
9、ts 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 Management Centre has the same status as the official versions. CEN members are the national standards b
10、odies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United
11、Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1007-7:2010: EE
12、N 1007-7:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .54 Symbols and abbreviations 75 Principle 76 Significance and use .87 Apparatus .87.1 Test machine 87.2 Load train 87.3 Adhesive .87.4 Test chamber 97.5 Set-up for heating 97.6 Temperature measureme
13、nt .97.7 Data recording system 98 Test procedure .98.1 Test specimens 98.2 Test specimen preparation 108.3 Number of test specimens . 128.4 Test Procedure 138.5 Calculation of results . 17Annex A (informative) Derivation of the Youngs modulus of the hot part of the tow 25Bibliography . 26BS EN 1007-
14、7:2010EN 1007-7:2010 (E) 3 Foreword This document (EN 1007-7:2010) has been prepared by Technical Committee CEN/TC 184 “Advanced technical ceramics”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identica
15、l text or by endorsement, at the latest by January 2011, and conflicting national standards shall be withdrawn at the latest by January 2011. 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 res
16、ponsible for identifying any or all such patent rights. This document supersedes CEN/TS 1007-7:2006. EN 1007, Advanced technical ceramics Ceramic composites. Methods of test for reinforcements, has been prepared in 7 parts: Part 1: Determination of size content; Part 2: Determination of linear densi
17、ty; Part 3: Determination of filament diameter and cross-section area; Part 4: Determination of tensile properties of filaments at ambient temperature; Part 5: Determination of distribution of tensile strength and of tensile strain to failure of filaments within a multifilament tow at ambient temper
18、ature; Part 6: Determination of tensile properties of filaments at high temperature; Part 7: Determination of the distribution of tensile strength and tensile strain to failure of filaments within a multifilament tow at high temperature. According to the CEN/CENELEC Internal Regulations, the nationa
19、l standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, No
20、rway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 1007-7:2010EN 1007-7:2010 (E) 4 1 Scope This European standard specifies the conditions, apparatus and procedure for determining the distribution of tensile strength and tensile strain to fa
21、ilure of ceramic filaments in multifilament tows at high temperature in air, vacuum or a controlled inert atmosphere. This part of EN 1007 applies to tows of continuous ceramic filaments, which are assumed to act freely and independently under loading and behave linearly elastic up to failure. Two m
22、ethods are proposed depending on the temperature of the ends of the tow: a) hot end method; NOTE 1 The application of the hot end method is restricted by ceramic glues with sufficient shear strengths at the test temperature. Current experience with this technique is limited to 1 300 C, because of th
23、e maximum application temperature of ceramic glues. b) cold end method. NOTE 2 The cold-end method is limited to 1 700 C in air and 2 000 C in inert atmosphere because of the limits of furnaces. Both methods allow for a failure rate in the determination of distribution of tensile strain and tensile
24、strength. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1007-2, Advan
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