EN ISO 15653:2010
(Main)Metallic materials - Method of test for the determination of quasistatic fracture toughness of welds (ISO 15653:2010)
Metallic materials - Method of test for the determination of quasistatic fracture toughness of welds (ISO 15653:2010)
ISO 15653:2010 specifies methods for determining fracture toughness in terms of K (stress intensity factor), δ (crack tip opening displacement, CTOD) and J (experimental equivalent of the J‑integral) for welds in metallic materials.
ISO 15653 is complementary to ISO 12135, which covers all aspects of fracture toughness testing of parent metal and which needs to be used in conjunction with this document. It describes methods for determining point values of fracture toughness. It should not be considered a way of obtaining a valid R‑curve (resistance-to-crack-extension curve). However, the specimen preparation methods described in ISO 15653 could be usefully employed when determining R‑curves for welds. The methods use fatigue precracked specimens which have been notched, after welding, in a specific target area in the weld. Methods are described to evaluate the suitability of a weld for notch placement within the target area, which is either within the weld metal or within the weld heat-affected zone (HAZ), and then, where appropriate, to evaluate the effectiveness of the fatigue crack in sampling these areas.
Metallische Werkstoffe - Prüfverfahren zur Bestimmung der quasistatischen Bruchzähigkeit von Schweißverbindungen (ISO 15653:2010)
Diese Internationale Norm legt Verfahren zur Bestimmung der Bruchzähigkeit mit dem K–Konzept
(Spannungsintensitätsfaktor), dem CTOD-Konzept (Rissspitzenöffnungsverschiebung, δ) und dem J-Integralkonzept
(experimentelles Äquivalent für das J-Integral) für Schweißungen an metallischen Werkstoffen fest.
Diese Internationale Norm ist ein Zusatz zu ISO 12135, die alle Aspekte der Bruchzähigkeitsprüfung von
Grundwerkstoffen abdeckt und in Verbindung mit diesem Dokument verwendet werden muss. Diese
Internationale Norm beschreibt Verfahren für die Bestimmung von Einzelwerten der Bruchzähigkeit. Sie sollte
nicht zur Bestimmung einer R-Kurve (Risswiderstandskurve) herangezogen werden. Dies betrifft nicht die in
dieser Internationalen Norm beschriebene Methodik zur Probenpräparation, die auch bei der Bestimmung von
R-Kurven von Schweißungen hilfreich eingesetzt werden könnte. Im vorliegenden Verfahren werden Proben
mit Ermüdungsrissen verwendet, die nach dem Schweißen in einen definierten Bereich der Schweißnaht
eingebracht werden. Dabei handelt es sich entweder um das Schweißgut oder die Wärmeeinflusszone (WEZ)
der Schweißnaht. Es wird eine Methodik beschrieben, die die Effektivität der realisierten Kerblage für
Ermüdungsrisseinbringung und Prüfung nachweist.
Matériaux métalliques - Méthode d'essai pour la détermination de la ténacité quasi statique à la rupture des soudures (ISO 15653:2010)
L'ISO 15653:2009 spécifie des méthodes permettant de déterminer la ténacité à la rupture en termes de K (facteur d'intensité de contrainte), d (écartement à fond de fissure, CTOD) et J (équivalent expérimental de l'intégrale J) pour les soudures dans les matériaux métalliques.
L'ISO 15653:2009 complète l'ISO 12135, qui couvre tous les aspects des essais de ténacité à la rupture du métal de base et qui doit être utilisée conjointement avec le présent document. Elle décrit des méthodes de détermination des valeurs en point de la ténacité à la rupture. Elle ne doit pas être considérée comme une façon permettant d'obtenir une courbe R valide (courbe de résistance à la propagation de fissure). Cependant, les méthodes de préparation des éprouvettes décrites dans l'ISO 15653:2009 peuvent être employées utilement lors de la détermination des courbes R pour les soudures. Les méthodes utilisent des éprouvettes préfissurées par fatigue qui ont été entaillées, après soudage, dans une surface cible spécifique de la soudure. Les méthodes sont décrites pour évaluer l'adaptabilité d'une soudure au placement des entailles dans la surface cible qui se trouve soit dans la zone fondue soit dans la zone de soudure affectée thermiquement (ZAT) puis, en cas de besoin, pour évaluer l'efficacité de la fissuration par fatigue lors de l'échantillonnage de ces surfaces.
Kovinski materiali - Preskusna metoda za ugotavljanje kvazistatične lomne žilavosti zvarnih spojev (ISO 15653:2010)
Ta mednarodni standard določa metode za ugotavljanje lomne žilavosti v smislu vrednosti K (faktor intenzivnosti napetosti), δ (premik vrha odprtja razpoke, CTOD) in J (eksperimentalna enakovredna vrednost integrala J) za zvarne spoje v kovinskih materialih. Ta mednarodni standard dopolnjuje ISO 12135, ki zajema vse vidike preskušanja lomne žilavosti matične kovine in ki se mora uporabljati skupaj s tem dokumentom. Ta mednarodni standard opisuje metodo za ugotavljanje točkovnih vrednosti lomne žilavosti. Ne sme veljati za način pridobivanja veljavne krivulje R (krivulje upornosti proti širjenju razpoke). Metode za pripravo vzorca, opisane v tem mednarodnem standardu, se lahko koristno uporabijo pri določanju krivulj R za zvarne spoje. Pri metodah se uporabljajo vzorci z utrujenostno razpoko, po varjenju zarezani v določeno ciljno območje zvarnega spoja. Metode so opisane za vrednotenje primernosti zvarnega spoja za postavitev zareze v ciljnem območju, ki je bodisi v varilni kovini ali toplotno vplivanem območju vara (HAZ), nato pa se po potrebi ovrednoti tudi učinkovitost utrujenostne razpoke pri vzorčenju teh območij.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Metallische Werkstoffe - Prüfverfahren zur Bestimmung der quasistatischen Bruchzähigkeit von Schweißverbindungen (ISO 15653:2010)Matériaux métalliques - Méthode d'essai pour la détermination de la ténacité quasistatique a la rupture des soudures (ISO 15653:2010)Metallic materials - Method of test for the determination of quasistatic fracture toughness of welds (ISO 15653:2010)25.160.40Varjeni spoji in variWelded jointsICS:Ta slovenski standard je istoveten z:EN ISO 15653:2010SIST EN ISO 15653:2011en,fr,de01-november-2011SIST EN ISO 15653:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN ISO 15653
April 2010 ICS 25.160.40 English Version
Metallic materials - Method of test for the determination of quasistatic fracture toughness of welds (ISO 15653:2010)
Matériaux métalliques - Méthode d'essai pour la détermination de la ténacité quasi statique à la rupture des soudures (ISO 15653:2010)
Metallische Werkstoffe - Prüfverfahren zur Bestimmung der quasistatischen Bruchzähigkeit von Schweißverbindungen (ISO 15653:2010) This European Standard was approved by CEN on 23 January 2010.
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 concerning such national standards may be obtained on application to the CEN 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 its own language and notified to the CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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Reference numberISO 15653:2010(E)© ISO 2010
INTERNATIONAL STANDARD ISO15653First edition2010-04-15Metallic materials — Method of test for the determination of quasistatic fracture toughness of welds Matériaux métalliques — Méthode d'essai pour la détermination de la ténacité quasi statique à la rupture des soudures
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ISO 15653:2010(E) © ISO 2010 – All rights reserved iii Contents Page Foreword.iv 1 Scope.1 2 Normative references.1 3 Terms and definitions.1 4 Symbols and units.3 5 Principle.3 6 Choice of specimen design, specimen orientation and notch location.4 6.1 Classification of target area for notching.4 6.2 Specimen design.4 6.3 Specimen and crack plane orientation.4 7 Pre-machining metallography.8 7.1 Microstructural assessment of macrosections.8 7.2 Additional requirements for heat-affected zone tests.9 8 Machining.9 8.1 Tolerances on specimen dimensions.9 8.2 Notch placement for through-thickness notched specimens.10 8.3 Notch placement for surface-notched specimens.10 8.4 Notch machining.10 9 Specimen preparation.15 9.1 Fatigue precracking.15 9.2 Side grooving.15 10 Test apparatus, requirements and test procedure.15 11 Post-test metallography.15 11.1 General.15 11.2 Through-thickness notched specimens.16 11.3 Surface-notched specimens.16 11.4 Assessment of pop-in.16 12 Post-test analysis.19 12.1 Choice of tensile properties.19 12.2 KIc.20 12.3 δ and J.20 12.4 Qualification requirements.20 13 Test report.24 Annex A (informative)
Examples of notch locations.25 Annex B (informative)
Examples of pre-test and post-test metallography.27 Annex C (normative)
Residual-stress modification and precracking technique.29 Annex D (normative)
Assessment of pop-in.31 Annex E (informative)
Shallow-notched specimen testing.37 Bibliography.41
ISO 15653:2010(E) iv © ISO 2010 – All rights reserved 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 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 Commission (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 committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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 identifying any or all such patent rights. ISO 15653 was prepared by Technical Committee ISO/TC 164, Mechanical testing of metals, Subcommittee SC 4, Toughness testing — Fracture (F), Pendulum (P), Tear (T).
INTERNATIONAL STANDARD ISO 15653:2010(E) © ISO 2010 – All rights reserved 1 Metallic materials — Method of test for the determination of quasistatic fracture toughness of welds 1 Scope This International Standard specifies methods for determining fracture toughness in terms of K (stress intensity factor), δ (crack tip opening displacement, CTOD) and J (experimental equivalent of the J-integral) for welds in metallic materials. This International Standard is complementary to ISO 12135, which covers all aspects of fracture toughness testing of parent metal and which needs to be used in conjunction with this document. This International Standard describes methods for determining point values of fracture toughness. It should not be considered a way of obtaining a valid R-curve (resistance-to-crack-extension curve). However, the specimen preparation methods described in this International Standard could be usefully employed when determining R-curves for welds. The methods use fatigue precracked specimens which have been notched, after welding, in a specific target area in the weld. Methods are described to evaluate the suitability of a weld for notch placement within the target area, which is either within the weld metal or within the weld heat-affected zone (HAZ), and then, where appropriate, to evaluate the effectiveness of the fatigue crack in sampling these areas. 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. ISO 3785, Metallic materials — Designation of test specimen axes in relation to product texture ISO 12135, Metallic mat
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