UNE EN ISO 20505:2025
Fine ceramics (advanced ceramics, advanced technical ceramics) - Mechanical properties of ceramic composites at room temperature - Determination of the interlaminar shear strength and shear modulus of continuous-fibre-reinforced composites by the compression of double-notched test pieces and by the Iosipescu test (ISO 20505:2023) (Endorsed by Asociación Española de Normalización in April of 2025.)
Cerámicas técnicas (cerámicas avanzadas, cerámicas técnicas avanzadas). Propiedades mecánicas de cerámicas compuestas a temperatura ambiente. Determinación de la resistencia al cizallamiento interlaminar y del módulo de corte de compuestos reforzados con fibras continuas mediante la compresión de probetas con doble entalla y mediante el ensayo de Iosipescu (ISO 20505:2023) (Ratificada por la Asociación Española de Normalización en abril de 2025.)
| Standard number: | UNE EN ISO 20505:2025 |
| Pages: | 31 |
| Released: | 2025-04-01 |
| Status: | Standard |
UNE EN ISO 20505:2025
This document specifies a method for the determination of interlaminar shear strength at ambient temperature by the compression of a double-notched test piece and a method for the determination of interlaminar shear strength and modulus at ambient temperature by the Iosipescu test. This document applies to all ceramic matrix composites with a continuous fibre reinforcement, having unidirectional (1D), bidirectional (2D) and multidirectional (xD, with x > 2) fibre architecture, where a major part of reinforcements is a stack of plies. This document is applicable to material development, material comparison, quality assurance, characterization, reliability and design data generation. The simpler compression test method of a double-notched test piece is applicable only when the shear strength has to be measured.