1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationAerospace series Metallic materials Test methods Sharp edge-notch tensile testing for sheet and stripBS EN 4526:2013National forewordThis British Standard is the UK implementatio
2、n of EN 4526:2013. The UK participation in its preparation was entrusted by Technical CommitteeACE/61, Metallic materials for aerospace purposes, to Subcommittee ACE/61/-/6, Mechanical Testing of Metallic Materials for Aerospace Purposes.A list of organizations represented on this committee can be o
3、btained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. The British Standards Institution 2013Published by BSI Standards Limited 2013ISBN 978 0 580 59071 9ICS 49.025.05; 49.025.15Com
4、pliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 January 2013.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 4526:2013EUROPEAN
5、STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4526 January 2013 ICS 49.025.05; 49.025.15 English Version Aerospace series - Metallic materials - Test methods - Sharp edge-notch tensile testing for sheet and strip Srie arospatiale - Matriaux mtalliques - Mthodes dessais - Essai de traction sur prouvett
6、e bord entaill pour tles et bandes Luft- und Raumfahrt - Metallische Werkstoffe - Prfverfahren - Zugversuch an Spitzkerbproben von Blechen und Bndern This European Standard was approved by CEN on 10 November 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipul
7、ate 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 St
8、andard 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 n
9、ational 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,
10、Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserv
11、ed worldwide for CEN national Members. Ref. No. EN 4526:2013: EBS EN 4526:2013EN 4526:2013 (E) 2 Contents Page Foreword . 3 Introduction 4 1 Scope 5 2 Normative references . 5 3 Terms, definitions and symbols 5 4 Health and safety . 5 5 Principle 5 6 Testing requirements . 6 7 Test report 7 BS EN 45
12、26:2013EN 4526:2013 (E) 3 Foreword This document (EN 4526:2013) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approva
13、l of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. 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 July 2013, and conflictin
14、g national standards shall be withdrawn at the latest by July 2013. 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. According to the C
15、EN/CENELEC Internal Regulations, the national standards organisations 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, Hung
16、ary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4526:2013EN 4526:2013 (E) 4 Introduction This standard is part of the series of EN metallic materia
17、l standards for aerospace applications. The general organisation of this series is described in EN 4258. BS EN 4526:2013EN 4526:2013 (E) 5 1 Scope This European Standard specifies the requirements for sharp edge-notch tensile testing for sheet and strip for aerospace applications. It shall be applie
18、d when referred to in the EN Technical Specification or material standard unless otherwise specified on the drawing, order or inspection schedule. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applicatio
19、n. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2002-001, Aerospace series Metallic materials Test methods Part 001: Tensile testing at ambient temperature EN 4258, Aerospace series
20、Metallic materials General organization of standardization Links between types of EN standards and their use EN 4259, Aerospace series Metallic materials Definition of general terms 1)ASTM E338-91, Sharp notch tension testing of high strength sheet materials 2)3 Terms, definitions and symbols For th
21、e purposes of this document, the terms, definitions and symbols given in EN 4259 apply. 4 Health and safety Resources, test pieces, test samples, test materials, test equipment and test procedures shall comply with the current health and safety regulations/laws of the countries where the test is to
22、be carried out. Where materials and/or reagents which may be hazardous to health are specified, appropriate precautions in conformity with local regulations and/or laws shall be taken. 5 Principle A test piece with a sharp machined notch is tested in tension to determine the maximum force (or load,
23、P) that can be withstood. The ratio of sharp notch strength to 0,2 % proof stress is used as a comparative index of fracture toughness. The test method is restricted to those materials (e.g. aluminium and magnesium alloys) in which the required sharp notch may be machined. 1) Published as ASD-STAN P
24、restandard at the date of publication of this standard (www.asd-stan.org). 2) Published by ASTM National (US) American Society for Testing and Materials http:/www.astm.org/ BS EN 4526:2013EN 4526:2013 (E) 6 6 Testing requirements 6.1 Resources 6.1.1 Equipment/plant See EN 2002-001 for ambient temper
25、ature tests. 6.1.2 Materials/Reagents The following materials/reagents may be suitable: degreasing fluids; recording paper; means of electronic recording, if appropriate. 6.1.3 Qualification of personnel Testing to the requirements of this test method shall only be undertaken and/or supervised by pe
26、rsonnel who have demonstrated their competence by a suitable education and appropriate training and experience. 6.2 Test samples/Test pieces A machined sharp edge-notch specimen in accordance with ASTM E338-91 shall be used. 6.3 Testing procedure 6.3.1 General See ASTM E338-91 and EN 2002-001. 6.3.2
27、 Temperature of test The test shall be carried out at 10 C 35 C, unless otherwise specified. In cases of dispute, the test shall be performed at = 23 C 5 C. 6.4 Expression of results See ASTM E338-91. BS EN 4526:2013EN 4526:2013 (E) 7 7 Test report All results shall be in written form and the test r
28、eport shall include, when relevant, at least the following information: reference to this standard; any other information relevant to the test method (e.g. test conditions, test equipment, test procedure, verification, .); identification and traceability to the semi-finished product to be tested in
29、accordance with the technical specifications; identification and traceability of test samples taken from the semi-finished product (e.g. location, orientation, size); identification and traceability of test pieces taken from the test samples (e.g. number, preparation, method, conditioning, use/metho
30、d of mechanical straightening of coiled strip). In certain cases, the test piece may be the test sample: expression of results (e.g. individual values or mean values, units, if fracture outside middle third of gauge length, use of an extensometer to measure elongation after fracture, unusual feature
31、s in the fracture surface, .); recorded plots/graphs, when necessary; date of test; traceability of individual performing the test; any incident which may have affected the results; any deviation from the test method standard. BS EN 4526:2013This page deliberately left blankThis page deliberately le
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