ISO 20975-2:2018Published

Fibre-reinforced plastic compositess — Determination of laminate through-thickness properties — Part 2: Determination of the elastic modulus, the strength and the Weibull size effects by flexural test of unidirectional laminate, for carbon-fibre based systems

Composites plastiques renforcés de fibres — Détermination des propriétés de l'épaisseur traversante d'un composite stratifié — Partie 2: Détermination du module d'élasticité, de la résistance et des effets de la taille de Weibull par essai en flexion sur un composite stratifié unidirectionnel, pour systèmes à base de fibres de carbone

Abstract / scope

This document specifies a flexural test method for determining the through-thickness (out-of-plane) tensile properties of laminated carbon fibre-reinforced plastic (CFRP) composites, including strength, fracture strain, and modulus. This document is applicable to unidirectional CFRP (UD-CFRP) laminates. In addition, the calculation of effective volume is also described due to size effects of the through-thickness tensile strength.