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>UNE standards>UNE EN ISO 21971:2024 - 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) (Endorsed by Asociación Española de Normalización in November of 2024.)
in stockReleased: 2024-11-01
UNE EN ISO 21971:2024 - 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) (Endorsed by Asociación Española de Normalización in November of 2024.)

UNE EN ISO 21971:2024

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) (Endorsed by Asociación Española de Normalización in November of 2024.)

Cerámica fina (cerámicas avanzadas, cerámicas técnicas avanzadas). Propiedades mecánicas de los compuestos cerámicos a temperatura ambiente y presión atmosférica. Determinación de las propiedades de tensión circunferencial de los tubos (ISO 21971:2019) (Ratificada por la Asociación Española de Normalización en noviembre de 2024.)

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Standard number:UNE EN ISO 21971:2024
Pages:29
Released:2024-11-01
Status:Standard
DESCRIPTION

UNE EN ISO 21971:2024

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).