prEN ISO 4255
Techninė keramika (modernioji keramika, modernioji techninė keramika). Mechaninės keraminių kompozitų savybės aukštoje temperatūroje. Vamzdelių savybių nustatymas atliekant vienaašį tempimą (ISO/DIS 4255:2024)
Standarto projektas Viešoji apklausaProjekto etapai
1. Decision on WI Proposal
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3. Viešoji apklausa
Nuo 2024-10-27
iki 2024-12-18
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Organizacija
CEN Europos standartizacijos komitetasICS
81.060.30 - Modernioji keramikaUžsienio technikos komitetas
CEN/TC 184Komentarų skaičius
0Komentavimo pradžia
2024-10-27Taikymo sritis
This document specifies the conditions for the determination of uniaxial tensile properties of ceramic matrix composite (CMC) tubes with continuous fibre-reinforcement at elevated temperature in air, vacuum or inert gas atmospheres. This document is specific to the tubular geometries because fibre architecture and specimen geometry factors in composite tubes are distinctly different from those in flat specimens. This document provides information on the axial tensile properties and stress-strain response in temperature, such as axial tensile strength, axial 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 all ceramic matrix composite tubes with a continuous fibrous-reinforcement: unidirectional (1D, filament winding and tape lay-up), bidirectional (2D braid and weave) and multi-directional (xD, with x > 2), tested along the tube axis.