GB/T 41498-2022 (English Version) PDF

Scope: /90 This document specifies a test method for the determination of the in-plane shear stress/shear strain response, shear strength, and shear modulus of continuous fiber-reinforced plastic composites with fiber orientations of 0° and 0°° using a shear frame . This document is applicable to unidirectional fibers, non-woven fabrics and/or fabrics (such as unidirectional fabrics) reinforced thermosetting and thermoplastic composite laminates, /90 fiber direction is 0 ° and 0 ° relative to the axial direction of the sample, and lay The layers are symmetrical and balanced with respect to the mid-plane of the specimen. This document is applicable to the determination of shear properties in the range of linear and nonlinear load-deformation curves, the shear strain can be greater than 5%. Short fiber reinforced plastic composite materials and long fiber reinforced plastic composite materials can be used by reference.

GB/T 41498-2022 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
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

2022 GB/T 41498-2022 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