EN ISO 26203-2:2011
(Main)Metallic materials - Tensile testing at high strain rates - Part 2: Servo-hydraulic and other test systems (ISO 26203-2:2011)
Metallic materials - Tensile testing at high strain rates - Part 2: Servo-hydraulic and other test systems (ISO 26203-2:2011)
ISO 26203-2:2011 gives requirements for the testing of metallic materials. Only examples for testing flat geometries are given; however, other geometries can be tested. The area of application spans a range of strain rates from 10-2 s-1 to 103 s-1. Tests are carried out between 10 °C and 35 °C and, unless otherwise specified, using a servo-hydraulic-type test system.
Metallische Werkstoffe - Zugversuch bei hohen Dehngeschwindigkeiten - Teil 2: Servohydraulische und andere Systeme (ISO 26203-2:2011)
Dieser Teil der ISO 26203 gilt für das Prüfen von Blechen aus metallischen Werkstoffen. Der Anwendungs-bereich erstreckt sich über einen Dehnratenbereich von 10–2 s–1 bis 103 s–1. Falls nicht anders festgelegt, können die Prüfungen zwischen 10 °C und 35 °C unter Anwendung einer servohydraulischen Prüfmaschine durchgeführt werden.
ANMERKUNG Messungen bei Dehnraten unter 10–2 s–1 können unter Anwendung von Prüfmaschinen für quasistatische Prüfungen durchgeführt werden.
ANMERKUNG Siehe ESIS P7 [1] und FAT Richtlinie [3] für andere Prüfgeometrien als in 6.1 und in Anhang B darge¬stellt.
Matériaux métalliques - Essai de traction à vitesses de déformation élevées - Partie 2: Systèmes d'essai servo-hydrauliques et autres systèmes d'essai (ISO 26203-2:2011)
L'ISO 26203-2:2011 spécifie les exigences pour les essais réalisés sur des matériaux métalliques. Seuls des exemples pour les essais sur des éprouvettes plates sont donnés; cependant, d'autres géométries peuvent être essayées. Le domaine d'application couvre une plage de vitesses de déformation comprise entre 10-2 s-1 et 103 s-1. Les essais doivent être réalisés, sauf spécification contraire, entre 10 °C et 35 °C, à l'aide d'un système d'essai de type servo-hydraulique.
Kovinski materiali - Natezno preskušanje pri velikih hitrostih deformacije - 2. del: Servohidravlični in drugi preskusni sistemi (ISO 26203-2:2011)
Ta del ISO 26203 podaja zahteve za preskušanje kovinskih materialov. Podani so samo primeri preskušanja ploščatih geometrij, preskušajo pa se lahko tudi druge geometrije. Področje uporabe obsega razpon nateznih hitrosti med 10-2 s-1 do 103 s-1. Preskusi se izvajajo pri temperaturi med 10 °C in 35 °C in, če ni navedeno drugače, z uporabo servohidravličnega preskusnega sistema.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2012
.RYLQVNLPDWHULDOL1DWH]QRSUHVNXãDQMHSULYHOLNLKKLWURVWLKGHIRUPDFLMHGHO
6HUYRKLGUDYOLþQLLQGUXJLSUHVNXVQLVLVWHPL ,62
Metallic materials - Tensile testing at high strain rates - Part 2: Servo-hydraulic and other
test systems (ISO 26203-2:2011)
Metallische Werkstoffe - Zugversuch bei hohen Dehngeschwindigkeiten - Teil 2:
Servohydraulische und andere Systeme (ISO 26203-2:2011)
Matériaux métalliques - Essai de traction à vitesses de déformation élevées - Partie 2:
Systèmes d'essai servo-hydrauliques et autres systèmes d'essai (ISO 26203-2:2011)
Ta slovenski standard je istoveten z: EN ISO 26203-2:2011
ICS:
77.040.10 Mehansko preskušanje kovin Mechanical testing of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 26203-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2011
ICS 77.040.10
English Version
Metallic materials - Tensile testing at high strain rates - Part 2:
Servo-hydraulic and other test systems (ISO 26203-2:2011)
Matériaux métalliques - Essai de traction à vitesses de Metallische Werkstoffe - Zugversuch bei hohen
déformation élevées - Partie 2: Systèmes d'essai servo- Dehngeschwindigkeiten - Teil 2: Servohydraulische und
hydrauliques et autres systèmes d'essai (ISO 26203- andere Systeme (ISO 26203-2:2011)
2:2011)
This European Standard was approved by CEN on 17 September 2011.
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-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 its 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, 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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EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 26203-2:2011: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 26203-2:2011) 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 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 2012, and conflicting national standards shall be withdrawn at the
latest by April 2012.
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 CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: 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 the United Kingdom.
Endorsement notice
The text of ISO 26203-2:2011 has been approved by CEN as a EN ISO 26203-2:2011 without any
modification.
INTERNATIONAL ISO
STANDARD 26203-2
First edition
2011-10-15
Metallic materials — Tensile testing at
high strain rates —
Part 2:
Servo-hydraulic and other test systems
Matériaux métalliques — Essai de traction à vitesses de déformation
élevées — Partie 2: Systèmes d’essai servo-hydrauliques et autres
systèmes d’essai
Reference number
ISO 26203-2:2011(E)
©
ISO 2011
ISO 26203-2:2011(E)
© ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
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Published in Switzerland
ii © ISO 2011 – All rights reserved
ISO 26203-2:2011(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 1
5 Principle . 3
6 Apparatus . 3
7 Test pieces . 3
7.1 Test piece geometry . 3
7.2 Preparation of test pieces . 4
8 Procedure and measurements . 5
8.1 Velocity selection . 5
8.2 Force measurement . 5
8.3 Extension measurement . 6
8.4 Data acquisition . 6
9 Evaluation of tests . 6
9.1 Stress-strain curve . 6
9.2 Determination of key values . 7
9.3 Strain rates . 8
9.4 Determination of flow curves . 8
10 Test report . 9
Annex A (informative) Testing equipment .10
Annex B (informative) Examples of test piece geometries .12
Annex C (informative) Example of an engineering stress-strain curve .14
Bibliography .15
© ISO 2011 – All rights reserved iii
ISO 26203-2:2011(E)
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 26203-2 was prepared by Technical Committee ISO/TC 164, Mechanical testing of metals, Subcommittee
SC 1, Uniaxial testing.
ISO 26203 consists of the following parts, under the general title Metallic materials — Tensile testing at high
strain rates:
— Part 1: Elastic-bar-type systems
— Part 2: Servo-hydraulic and other test systems
iv © ISO 2011 – All rights reserved
ISO 26203-2:2011(E)
Introduction
The deformation behaviour of many technical materials shows a positive strain-rate effect up to ductile failure,
i.e. with increasing strain rate, an increase of yield stress and strain to failure can be observed. This information
is of great importance for the reliable assessment of crashworthiness of automobile structures, which is
increasingly determined by numerical methods to minimize the need for cost-intensive and time-consuming
crash tests. For the numerical simulation of crash-type loads, stress-strain curves determined at higher strain
rates are required. The quasi-static values determined according to ISO 6892-1, i.e. strain rates lower than or
−1
equal to 0,008 s ,are not suitable for the description of the behaviour of the material of a component under
dynamic load, i.e. at strain rates higher than those in quasi-static tests.
© ISO 2011 – All rights reserved v
INTERNATIONAL STANDARD ISO 26203-2:2011(E)
Metallic materials — Tensile testing at high strain rates —
Part 2:
Servo-hydraulic and other test systems
1 Scope
This part of ISO 26203 gives requirements for the testing of metallic materials. Only examples for testing flat
geometries are given; however, other geometries can be tested. The area of application spans a range of strain
−2 −1 3 −1
rates from 10 s to 10 s . Tests are carried out between 10 °C and 35 °C and, unless otherwise specified,
using a servo-hydraulic-type test system.
−2 −1
NOTE 1 Measurements at strain rates lower than 10 s can be performed using machines designed for quasi-static
testing.
NOTE 2 For test piece geometries other than those shown in 7.1 and Annex B, see ESIS P7 (Reference [1]) and
FAT Guideline (Reference [2]).
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 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6892-1 apply.
4 Symbols
For the purposes of this document, the symbols given in ISO 6892-1 apply. Additional symbols, units and
descriptions are provided in Table 1.
Table 1 — Symbols
Symbol Unit Description
Test piece
a mm Original thickness of a flat
...
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