prEN ISO 21971
(Main)Fine ceramics (advanced ceramics, advanced technical ceramics) - Mechanical properties of ceramic composites at ambient temperature in air atmospheric pressure - Determination of hoop tensile properties of tubes (ISO 21971:2019)
Fine ceramics (advanced ceramics, advanced technical ceramics) - Mechanical properties of ceramic composites at ambient temperature in air atmospheric pressure - Determination of hoop tensile properties of tubes (ISO 21971:2019)
This document specifies the conditions for the determination of hoop tensile properties of ceramic
matrix composite (CMC) tubes with continuous fibre-reinforcement at ambient temperature in air
atmospheric pressure. This document is specific to the tubular geometries since fibre architecture and
specimen geometry factors in composite tubes are distinctly different from those in flat specimens.
This document provides information on the hoop tensile properties and stress-strain response, such
as hoop tensile strength, hoop tensile strain at failure and elastic constants. The information can be
used for material development, control of manufacturing (quality insurance), material comparison,
characterization, reliability and design data generation for tubular components.
This document addresses, but is not restricted to, various suggested test piece fabrication methods.
It applies primarily to ceramic and/or glass matrix composite tubes with a continuous fibrous-
reinforcement: unidirectional (1D filament winding and tape lay-up), bi-directional (2D braid and
weave) and tri-directional (xD, with 2 < x < 3), subjected to an internal pressure.
Values expressed in this document are in accordance with the International System of Units (SI).
Hochleistungskeramik - Zugfestigkeitseigenschaften von endlosfaserverstärkten keramischen Verbundrohren bei Umgebungstemperatur (ISO 21971:2019)
Céramiques techniques (céramiques avancées, céramiques techniques avancées) - Propriétés mécaniques des céramiques composites à température ambiante et à pression atmosphérique - Détermination des propriétés en traction circonférentielle de tubes (ISO 21971:2019)
Fina keramika (sodobna keramika, sodobna tehnična keramika) - Mehanske lastnosti keramičnih kompozitov pri temperaturi okolice in pri zračnem tlaku - Ugotavljanje nateznih lastnosti obroča cevi (ISO 21971:2019)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 21971:2024
01-julij-2024
Fina keramika (sodobna keramika, sodobna tehnična keramika) - Mehanske
lastnosti keramičnih kompozitov pri temperaturi okolice in pri zračnem tlaku -
Ugotavljanje nateznih lastnosti obroča cevi (ISO 21971:2019)
Fine ceramics (advanced ceramics, advanced technical ceramics) - Mechanical
properties of ceramic composites at ambient temperature in air atmospheric pressure -
Determination of hoop tensile properties of tubes (ISO 21971:2019)
Hochleistungskeramik - Zugfestigkeitseigenschaften von endlosfaserverstärkten
keramischen Verbundrohren bei Umgebungstemperatur (ISO 21971:2019)
Céramiques techniques (céramiques avancées, céramiques techniques avancées) -
Propriétés mécaniques des céramiques composites à température ambiante et à
pression atmosphérique - Détermination des propriétés en traction circonférentielle de
tubes (ISO 21971:2019)
Ta slovenski standard je istoveten z: prEN ISO 21971
ICS:
81.060.30 Sodobna keramika Advanced ceramics
oSIST prEN ISO 21971:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 21971:2024
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oSIST prEN ISO 21971:2024
INTERNATIONAL ISO
STANDARD 21971
First edition
2019-12
Fine ceramics (advanced ceramics,
advanced technical ceramics) —
Mechanical properties of ceramic
composites at ambient temperature
in air atmospheric pressure —
Determination of hoop tensile
properties of tubes
Céramiques techniques (céramiques avancées, céramiques techniques
avancées) — Propriétés mécaniques des céramiques composites à
température ambiante et à pression atmosphérique — Détermination
des propriétés en traction circonférentielle de tubes
Reference number
ISO 21971:2019(E)
©
ISO 2019
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oSIST prEN ISO 21971:2024
ISO 21971:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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.
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Published in Switzerland
ii © ISO 2019 – All rights reserved
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oSIST prEN ISO 21971:2024
ISO 21971:2019(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 3
5 Apparatus . 4
5.1 Pressurizing system . 4
5.2 Test specimen gripping and end closure . 4
5.3 Strain measurement . 5
5.3.1 General. 5
5.3.2 Strain gauges .
...
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