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    DIN EN ISO 14556-2017 Metallic materials - Charpy V-notch pendulum impact test - Instrumented test method (ISO 14556 2015) German version EN ISO 14556 2015《金属材料 夏比V形切痕摆式冲击试验 仪器试验法(.pdf

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    DIN EN ISO 14556-2017 Metallic materials - Charpy V-notch pendulum impact test - Instrumented test method (ISO 14556 2015) German version EN ISO 14556 2015《金属材料 夏比V形切痕摆式冲击试验 仪器试验法(.pdf

    1、May 2017 English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77.040.10!%e_1“2666014www.din.deDIN

    2、EN ISO 14556Metallic materials Charpy Vnotch pendulum impact test Instrumented test method (ISO 14556:2015);English version EN ISO 14556:2015,English translation of DIN EN ISO 14556:2017-05Metallische Werkstoffe Kerbschlagbiegeversuch nach Charpy (VKerb) Instrumentiertes Prfverfahren (ISO 14556:2015

    3、);Englische Fassung EN ISO 14556:2015,Englische bersetzung von DIN EN ISO 14556:2017-05Matriaux mtalliques Essai de flexion par choc sur prouvette Charpy entaille en V Mthode dessai instrument (ISO 14556:2015);Version anglaise EN ISO 14556:2015,Traduction anglaise de DIN EN ISO 14556:2017-05Supersed

    4、esDIN EN ISO 14556:201602www.beuth.deDocument comprises 28 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.05.17 DIN EN ISO 14556:2017-05 2 A comma is used as the decimal marker. National foreword This document (EN ISO 14556:20

    5、15) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals”, Subcommittee SC 4 “Toughness testing” (Secretariat: ANSI, USA) in collaboration with Technical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” (Secretariat: AFNOR, France) in accord

    6、ance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement). International Standard ISO 14556:2015 is based on STAHL-EISEN-Prfblatt (Iron and steel testing specification) SEP 1315 Kerbschlagbiegeversuch mit Ermittlung von Kraft und Weg (Notch bend impact test Determinatio

    7、n of force and displacement), May 1987 edition, and DVM-Merkblatt (DVM Code of practice) 001 Messtechnische Anforderungen beim instrumentierten Kerbschlagbiegeversuch (Instrumentation requirements for instrumented notch bend tests), September 1986 edition. On the basis of these documents, ESIS TC5 (

    8、European Structural Integrity Society) developed a standards proposal. In 1995 work was begun with international participation and, within the framework of the parallel voting procedure at ISO and CEN, the proposal was adopted as a standard. The responsible German body involved in its preparation wa

    9、s DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-01-44 AA “Impact testing of metals”. Users of this standard should take note of the following: According to investigations made, the precision of the method as set out in this standard will onl

    10、y be reached if a pendulum with a 2 mm striker as in ISO 148-2 is used. There is evidence that the reproducibility of results will be impaired in cases where an 8 mm striker as in ISO 148-1 (which is also permitted) is used. This is especially the case when comparing the absorbed impact energy as in

    11、dicated by the machine and the impact energy calculated on the basis of the surface integral of a measured force-displacement curve. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 148-1 DIN EN ISO 148-1 ISO 148-2 DIN EN ISO 148-2 DIN E

    12、N ISO 14556:2017-05 3 Amendments This standard differs from DIN EN ISO 14556:2006-10 as follows: a) the definitions given in Clause 3 “Terms and definitions” have been rendered more precise; b) the requirements for recording apparatus specified in 6.2.5 have been rendered more precise; c) the evalua

    13、tion of the force-displacement curves of types A to F described in 9.2 has been given in more detail; d) the procedure to determine the yield force Fgy described in 9.3 has been modified; e) the evaluation of the informative value of the formulae given in Annex C “Formulae for the estimation of the

    14、proportion of ductile fracture surface” and formula C.3 have been changed; f) a new normative Annex D “Instrumented Charpy V-notch pendulum impact testing of miniature test pieces” has been added; g) the standard has been editorially revised. Compared with DIN EN ISO 14556:2016-02, the following cor

    15、rections have been made: a) in D.2.1, incomplete sentences have been corrected. Previous editions DIN EN ISO 14556: 2000-09, 2006-10, 2016-02 DIN EN ISO 14556:2017-05 4 National Annex NA (informative) Bibliography DIN EN ISO 148-1, Metallic materials Charpy pendulum impact test Part 1: Methods of te

    16、st DIN EN ISO 148-2, Metallic materials Charpy pendulum impact test Part 2: Verification of testing machines EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14556 October 2015 ICS 77.040.10 Supersedes EN ISO 14556:2000English Version Metallic materials - Charpy V-notch pendulum impact test

    17、-Instrumented test method (ISO 14556:2015) Matriaux mtalliques - Essai de flexion par choc sur prouvette Charpy entaille en V - Mthode dessai instrument (ISO 14556:2015) Metallische Werkstoffe - Kerbschlagbiegeversuch nach Charpy (V-Kerb) - Instrumentiertes Prfverfahren(ISO 14556:2015) This European

    18、 Standard was approved by CEN on 3 July 2015. 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 concernin

    19、g 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 it

    20、s 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, Germa

    21、ny, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR

    22、NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14556:2015 EEuropean foreword .31 Scope . 52 Normative references 53 Terms and definitions . 53.1 Cha

    23、racteristic values of force 53.2 Characteristic values of displacement 63.3 Characteristic values of impact energy 64 Symbols and abbreviated terms . 65 Principle 76 Apparatus . 87 Test piece . 108 Test procedure . 109 Expression of results . 109.1 General 109.2 Evaluation of the force-displacement

    24、curve . 119.3 Determination of the characteristic values of force . 119.4 Determination of the characteristic values of displacement 119.5 Determination of the characteristic values of impact energy . 1310 Test report 13Annex A (informative) Designs of instrumented strikers 15Annex B (informative) E

    25、xample of support block for the calibration of a 2 mm striker .16Annex C (informative) Formulae for the estimation of the proportion of ductile fracture surface 17Annex D (normative) Instrumented Charpy V-notch pendulum impact testing of miniature test pieces .18Bibliography .24Contents PageDIN EN I

    26、SO 14556:2017-05EN ISO 14556:2015 (E) 2Foreword .4European foreword This document (EN ISO 14556:2015) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals” in collaboration with Technical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” the

    27、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 latest by April 2016, and conflicting national standards shall be withdrawn at the latest by April 2016. Attention is d

    28、rawn 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 ISO 14556:2000. According to the CEN-CENELEC Internal Regulations, the n

    29、ational 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,

    30、Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 14556:2015 has been approved by CEN as EN ISO 14556:2015 without any modification. DIN EN ISO 14556:2017-05

    31、EN ISO 14556:2015 (E) 3 ForewordISO (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

    32、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 Commissi

    33、on (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents shoul

    34、d be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for iden

    35、tifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the conveni

    36、ence of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword -

    37、Supplementary informationThe committee responsible for this document is ISO/TC 164, Mechanical testing of metals, Subcommittee SC 4, Toughness testing.This second edition cancels and replaces the first edition (ISO 14556:2000), which has been technically revised.DIN EN ISO 14556:2017-05EN ISO 14556:

    38、2015 (E) 4 1 ScopeThis International Standard specifies a method of instrumented Charpy V-notch pendulum impact testing on metallic materials and the requirements concerning the measurement and recording equipment.With respect to the Charpy pendulum impact test described in ISO 148-1, this test prov

    39、ides further information on the fracture behaviour of the product under impact testing conditions.General information about instrumented impact testing can be found in Reference 1 to Reference 5.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this do

    40、cument and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 148-1, Metallic materials Charpy pendulum impact test Part 1: Test method.ISO 148-2, Me

    41、tallic materials Charpy pendulum impact test Part 2: Verification of testing machines.3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1 Characteristic values of force3.1.1general yield forceFgyforce at the transition point from the linearly incre

    42、asing part to the curved increasing part of the force-displacement curveNote 1 to entry: It represents a first approximation of the force at which yielding has occurred across the entire test piece ligament (see 9.3).3.1.2maximum forceFmmaximum force in the course of the force-displacement curve3.1.

    43、3unstable crack initiation forceFiuforce at the beginning of the steep drop in the force-displacement curve (unstable crack initiation)3.1.4crack arrest forceFaforce at the end (arrest) of unstable crack propagationDIN EN ISO 14556:2017-05 EN ISO 14556:2015 (E) 5 3.2 Characteristic values of displac

    44、ement3.2.1general yield displacementsgydisplacement corresponding to the general yield force, Fgy3.2.2displacement at maximum forcesmdisplacement corresponding to the maximum force, Fm3.2.3crack initiation displacementsiudisplacement corresponding to the force at unstable crack initiation, Fiu3.2.4c

    45、rack arrest displacementsadisplacement corresponding to the force at the end (arrest) of unstable crack propagation, Fa3.2.5total displacementstdisplacement at the end of the force-displacement curve3.3 Characteristic values of impact energy3.3.1energy at maximum forceWmpartial impact energy from s

    46、= 0 to s = sm3.3.2unstable crack initiation energyWiupartial impact energy from s = 0 to s = siu3.3.3crack arrest energyWapartial impact energy from s =0 to s = sa3.3.4total impact energyWtenergy absorbed by the test piece during the testNote 1 to entry: Calculated from the area under the force-disp

    47、lacement curve from s =0 to s = st.4 Symbols and abbreviated termsFor the purposes of this document, the symbols and abbreviations given in Table 1 are applicable (see also Figure 2 and Figure 3).DIN EN ISO 14556:2017-05EN ISO 14556:2015 (E) 6 Table 1 Symbols and designationsSymbol Designation Unitf

    48、gOutput frequency limit HzF Force NFaCrack arrest force NFgyGeneral yield force NFiuUnstable crack initiation force NFmMaximum force NgnAcceleration due to gravity m/s2h Height of fall of the centre of strike of the pendulum (see ISO 148-2) mKV Absorbed energy as defined in ISO 148-1 Jm Effective mass of the pendulum corresponding to its effective weight (see ISO 148-2) kgs Displacement msaCrack arrest displacement msgyGeneral yield


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