ISO 20337:2018 PDF

Scope: 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.

ISO 20337:2018 Referenced Document

ISO 12781-1 Geometrical product specifications (GPS) - Flatness - Part 1: Vocabulary and parameters of flatness
ISO 2602 Statistical interpretation of test results; estimation of the mean; confidence interval
ISO 2818 Plastics — Preparation of test specimens by machining*， 2018-12-13 Update
ISO 291 Plastics - Standard atmospheres for conditioning and testing
ISO 7500-1 Metallic materials - Calibration and verification of static uniaxial testing machines - Part 1: Tension/compression testing machines - Calibration and verification of the force-measuring system

2018 ISO 20337:2018 Fibre-reinforced plastic composites — Shear test method using a shear frame for the determination of the in-plane shear stress/shear strain response and shear modulus