Metallic materials — Torque-controlled fatigue testing

This document specifies the conditions for performing torsional, constant-amplitude, nominally elastic stress fatigue tests on metallic specimens without deliberately introducing stress concentrations. The tests are typically carried out at ambient temperature or an elevated temperature in air by applying a pure couple to the specimen about its longitudinal axis. While the form, preparation and testing of specimens of circular cross-section and tubular cross-section are described in this document, component and other specialized types of testing are not included. Similarly, low-cycle torsional fatigue tests carried out under constant-amplitude angular displacement control, which lead to failure in a few thousand cycles, are also excluded.

Matériaux métalliques — Essais de fatigue par couple de torsion commandé

Le présent document spécifie les conditions de réalisation d’essais de fatigue par torsion, à amplitude constante et à contrainte nominalement élastique, sur des éprouvettes métalliques, sans introduire délibérément des concentrations de contrainte. Les essais sont généralement réalisés à température ambiante ou à une température élevée dans l’air en appliquant un couple pur sur l’éprouvette autour de son axe longitudinal. Même si la forme, la préparation et les essais des éprouvettes de section transversale circulaire et annulaire sont décrits dans le présent document, les essais de composants et autres types d’essais spécialisés ne sont pas inclus. De même, les essais de fatigue oligocyclique en torsion réalisés avec un contrôle de déplacement angulaire à amplitude constante, qui conduisent à une rupture au bout de quelques milliers de cycles, sont également exclus.

General Information

Status
Published
Publication Date
20-Dec-2021
Current Stage
6060 - International Standard published
Start Date
21-Dec-2021
Due Date
27-Sep-2021
Completion Date
21-Dec-2021
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INTERNATIONAL ISO
STANDARD 1352
Third edition
2021-12
Metallic materials — Torque-
controlled fatigue testing
Matériaux métalliques — Essais de fatigue par couple de torsion
commandé
Reference number
ISO 1352:2021(E)
© ISO 2021

---------------------- Page: 1 ----------------------
ISO 1352:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 1352:2021(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms.3
5 Principle of test . 4
6 Test plan . 5
7 Shape and size of specimen . 5
7.1 Form . 5
7.2 Dimensions . 7
7.2.1 Specimens of circular cross-section . 7
7.2.2 Specimens with tubular cross-section . 8
8 Preparation of specimens .8
8.1 General . 8
8.2 Machining procedure . 8
8.3 Sampling and marking . . 9
8.4 Surface conditions of specimen . 9
8.5 Dimensional checks . 10
8.6 Storage and handling . 10
9 Apparatus .
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 1352
ISO/TC 164/SC 4
Metallic materials — Torque-
Secretariat: ANSI
controlled fatigue testing
Voting begins on:
2021-10-01
Matériaux métalliques — Essais de fatigue par couple de torsion
commandé
Voting terminates on:
2021-11-26
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 1352:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2021

---------------------- Page: 1 ----------------------
ISO/FDIS 1352:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/FDIS 1352:2021(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms.3
5 Principle of test . 4
6 Test plan . 5
7 Shape and size of specimen . 5
7.1 Form . 5
7.2 Dimensions . 7
7.2.1 Specimens of circular cross-section . 7
7.2.2 Specimens with tubular cross-section . 8
8 Preparation of specimens .8
8.1 General . 8
8.2 Machining procedure . 8
8.3 Sampling and marking . . 9
8.4 Surface conditions of specimen .
...

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