ISO 9538:2017

Aerospace series — Hydraulic tubing joints and fittings — Planar flexure test

ISO 9538:2017 specifies a flexure test procedure for reconnectable and permanent hydraulic tube joints. This procedure is intended for conducting flexure tests on fittings with high-strength hydraulic tubes made of corrosion-resisting steel, titanium and aluminium for use on commercial and military aircraft.

Série aérospatiale — Joints et raccords des tuyauteries hydrauliques — Essai de flexion plane

General Information

• Status: Published
• Publication Date: 24-Apr-2017
• ICS: 49.080 - Aerospace fluid systems and components
• Technical Committee: ISO/TC 20/SC 10 - Aerospace fluid systems and components
• Drafting Committee: ISO/TC 20/SC 10/WG 6 - Couplings for rigid pipe
• Current Stage: 9092 - International Standard to be revised
• Completion Date: 17-Nov-2022

Relations

• Revises: ISO 9538:1996 - Aerospace — Hydraulic tubing joints and fittings — Planar flexure test
• Effective Date: 12-Feb-2014

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 9538
Second edition
2017-04
Aerospace series — Hydraulic tubing
joints and fittings — Planar flexure test
Série aérospatiale — Joints et raccords des tuyauteries hydrauliques
— Essai de flexion plane
Reference number
ISO 9538:2017(E)
©
ISO 2017

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ISO 9538:2017(E)

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© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved

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ISO 9538:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Device for flexure test . 1
5 Flexure test specimens . 3
6 Stress determination. 3
7 Procedure. 4
7.1 Instrumentation and strain gauges . 4
7.2 Frequency . 5
7.2.1 Test frequency . 5
7.2.2 Natural frequency of the specimens . 5
7.2.3 Determination of tube length. 5
7.3 Bending stress calibration of test specimen . 5
8 Requirements . 5
Bibliography . 6
© ISO 2017 – All rights reserved iii

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ISO 9538:2017(E)

Foreword
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This document was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles,
Subcommittee SC 10, Aerospace fluid systems and components.
This second edition cancels and replaces the first edition (ISO 9538:1996), of which
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