Vlákny vyztužené plastové kompozity - Zkouška střihem za použití rámu pro stanovení křivky smykové napětí/smyková deformace a smykového modulu (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.4.2020
Designation standards: ČSN EN ISO 20337
Classification mark: 649320
Catalog number: 509278
Publication date standards: 1.4.2020
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
This document specifies a method using a shear test apparatus for measuring the in-plane shear stress/shear strain response, shear modulus and shear strength of continuous-fibre-reinforced plastic composite materials with fibre orientations of 0° and 0°/90°. This method is applicable to thermoset and thermoplastic matrix laminates made from unidirectional layers/non-woven fabrics and/or fabrics including unidirectional fabrics, with the fibres oriented at 0° and 0°/90° to the specimen axis, where the lay-up is symmetrical and balanced about the specimen mid-plane. The method is suitable for determining shear properties in both the linear and nonlinear load-deformation range even at shear strains greater than 5 %. Short and long fibre-reinforced plastic composites can also be tested using this document