EN 14493:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Strukturklebstoffe - Bestimmung des dynamischen Keil-Schlag-Widerstandes von hochfesten Klebungen unter Schlagbelastung - Keil-Schlag-Verfahren (ISO 11343:1993 modifiziert)Adhésifs - Détermination de la résistance dynamique a un clivage de joints collés a haute résistance soumis aux conditions d'impact - Méthode d'impact au coin (ISO 11343:1993 modifiée)Structural adhesives - Determination of dynamic resistance to cleavage of high strength adhesive bonds under impact conditions - Wedge impact method (ISO 11343:1993 modified)83.180LepilaAdhesivesICS:Ta slovenski standard je istoveten z:EN 14493:2002SIST EN 14493:2003en01-maj-2003SIST EN 14493:2003SLOVENSKI
STANDARD



SIST EN 14493:2003



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14493November 2002ICS 83.180English versionStructural adhesives - Determination of dynamic resistance tocleavage of high strength adhesive bonds under impactconditions - Wedge impact method (ISO 11343:1993 modified)Adhésifs - Détermination de la résistance dynamique à unclivage de joints collés à haute résistance soumis auxconditions d'impact - Méthode d'impact au coin (ISO11343:1993 modifiée)Strukturklebstoffe - Bestimmung des dynamischen Keil-Schlag-Widerstandes von hochfesten Klebungen unterSchlagbelastung - Keil-Schlag-Verfahren (ISO 11343:1993modifiziert)This European Standard was approved by CEN on 16 October 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14493:2002 ESIST EN 14493:2003



EN 14493:2002 (E)2ContentspageForeword.31Scope.42Normative references.43Terms and definitions.44Principle.45Safety.46Apparatus.57Specimens.78Test procedure.109Expression of results.1010Precision.1011Test report.11SIST EN 14493:2003



EN 14493:2002 (E)3ForewordThe text of the International Standard from Technical Committee ISO/TC 61 "Plastics" of the InternationalOrganization for Standardization (ISO) has been taken over as a European Standard by Technical CommitteeCEN/TC 193 "Adhesives", the secretariat of which is held by AENOR.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by May 2003, and conflicting national standards shall be withdrawn at the latest byMay 2003.Endorsement noticeThe text of ISO 11343:1993 has been approved by CEN as a draft European Standard with agreed commonmodifications as given below:¾ the title has been modified ,¾ Figure 1 is given as an example,¾ the normative references have been updated and,¾ a "Safety" clause has been introduced.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.SIST EN 14493:2003



EN 14493:2002 (E)41 ScopeThis European Standard specifies a dynamic impact wedge method for the determination of the cleavageresistance under impact loading of high-strength adhesive bonds between two metallic adherends, when testedunder specified conditions of preparation and testing.The method allows a choice of sheet metal substrate corresponding to those materials frequently used in industry,e.g. for automotive applications.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 923, Adhesives – Terms and definitions.EN 29142, Adhesives – Guide to the selection of standard laboratory ageing conditions for testing bonded joints(ISO 9142:1990).prEN 13887, Structural adhesives – Guidelines for surface preparation of metals and plastics prior to adhesivebonding.EN ISO 10365, Adhesives – Designation of main failure patterns (ISO 10365:1992).3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in EN 923 and the following apply.3.1dynamic resistance to cleavageforce per unit width, necessary to bring an adhesive joint to the point of failure by means of a stress applied by awedge moving between the two substrates of the joint, and thus separating the adherends in a peeling modeIt is expressed in kilonewtons per metre.4 PrincipleThe method consits of the determination of the average cleavage resistance, expressed as force or energy, of theadhesive bond between two metallic adherends. The cleavage corresponds to the separation of the adherends bya wedge, moving at high speed, whose displacement is initiated by an impact.5 SafetyPersons using this standard shall be familiar with normal laboratory practice.This standard does not purport to address all the safety problems, if any, associated with its use.SIST EN 14493:2003



EN 14493:2002 (E)5It is the responsability of the user to establish safety and health practices and to ensure compliance with anyEuropean or national regulatory conditions.6 Apparatus6.1Instrumented impact testing machine, capable of applying an impact energy of at least 50 J andpreferably up to 300 J and an impact speed of at least 3 m/s and preferably up to 5,5 m/s. It shall be provided witha suitable grip to hold the specimen. The jaws of this grip shall firmly engage the outer part of the ends of themetallic adherends and shall have provision for positive location of these adherends by means of a hardened steelbolt passing through t
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