BS-EN-ISO-12737-2005.pdf
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1、BRITISH STANDARD BS EN ISO 12737:2005 Metallic materials Determination of plane-strain fracture toughness The European Standard EN ISO 12737:2005 has the status of a British Standard ICS 77.040.10 ? BS EN ISO 12737:2005 This British Standard was published under the authority of the Standards Policy
2、and Strategy Committee on 12 January 2006 BSI 12 January 2006 ISBN 0 580 47415 1 National foreword This British Standard is the official English language version of EN ISO 12737:2005. It is identical with ISO 12737:2005. It supersedes BS EN ISO 12737:1999 which is withdrawn. The UK participation in
3、its preparation was entrusted by Technical Committee ISE/NFE/4, Mechanical testing of materials, to Subcommittee ISE/NFE/4/4, Toughness testing, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the int
4、erpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards wh
5、ich implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This public
6、ation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover
7、, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 18, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EURO
8、PEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12737 August 2005 ICS 77.040.10 English Version Metallic materials - Determination of plane-strain fracture toughness (ISO 12737:2005) Matriaux mtalliques - Dtermination du facteur dintensit de contrainte critique (ISO 12737:2005) Metallische Werk
9、stoffe - Bestimmung der Bruchzhigkeit (ebener Dehnungszustand) (ISO 12737:2005) This European Standard was approved by CEN on 14 April 2005. 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 nati
10、onal standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in an
11、y other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finla
12、nd, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR
13、NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12737:2005: E Foreword This document (EN ISO 12737:2005) has been prepared by Technical Committee ISO/TC 164 “Me
14、chanical testing of metals“ in collaboration with Technical Committee ECISS/TC 1 “Steel - Mechanical testing“, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the late
15、st by February 2006, and conflicting national standards shall be withdrawn at the latest by February 2006. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech
16、 Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 12737:2005 has been appr
17、oved by CEN as EN ISO 12737:2005 without any modifications. EN ISO 12737:2005 Reference number ISO 12737:2005(E) INTERNATIONAL STANDARD ISO 12737 Second edition 2005-08-01 Metallic materials Determination of plane-strain fracture toughness Matriaux mtalliques Dtermination du facteur dintensit de con
18、trainte critique EN ISO 12737:2005 ii EN ISO 12737:2005 iii Contents Page Foreword iv 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Symbols and designations 2 5 Principle. 2 6 Apparatus 4 6.1 Testing machine and force measurement 4 6.2 Fatigue cracking machine 4 6.3 Displacemen
19、t gauge . 4 6.4 Testing fixtures . 4 7 Test specimen size, configuration and preparation 4 7.1 Specimen size . 4 7.2 Recommended specimen proportions . 5 7.2.1 Recommended specimens 5 7.2.2 Alternative proportions 5 7.2.3 Alternative specimen configurations (for information only) . 5 7.2.4 Fatigue-c
20、rack starter notch . 5 7.3 Specimen preparation and fatigue precracking 5 7.3.1 Material condition . 5 7.3.2 Crack-plane orientation 7 7.3.3 Machining 7 7.3.4 Fatigue precracking 7 8 Procedure 8 8.1 Specimen measurement 8 8.2 Specimen test temperature 8 8.3 Fixture measurements for bend specimen 8 9
21、 Test procedure 8 10 Calculation and interpretation of results 9 11 Test report . 9 Annex A (normative) Fatigue precracking of KIc fracture toughness specimens. 11 Annex B (normative) Bend specimen 12 Annex C (normative) Compact specimen 14 Annex D (informative) Test fixtures 16 Bibliography . 18 EN
22、 ISO 12737:2005 iv 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 su
23、bject 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 (
24、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 commi
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