GB/T 31290-2022 in English

VALID

Carbon fibre—Determination of the tensile properties of single-filament specimens

Issued on:2022-07-11
Implemented on:2023-02-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $180.00
$175.00

Standard No:	GB/T 31290-2022
Document status:	VALID
Title in English:	Carbon fibre—Determination of the tensile properties of single-filament specimens
Title in Chinese:	碳纤维单丝拉伸性能的测定
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-07-11
Implemented on:	2023-02-01
Superseding:	GB/T 31290-2014 Carbon fibre―Determination of the tensile properties of single-filament specimens
ICS Classification:	59.100.20-Carbon materials
Chinese Classification:	Q53-Special carbon material
Professional Classification:	GB-National Standard
Related Keywords:	tensile properties apparent tensile improved compliance correction system single-filament specimens introductionanalysis parameter system
Related Topics:	carbon fiber High performance carbon fiber sheet Identification of Carbon Fiber High performance carbon fiber sheet Synthetic Filament Tensile Properties Test carbon fiber sleeve Conductive Fiber Properties Conductive properties of fibers GB/T 31290-2014 stretching of synthetic fibers Fiber Tensile Test Conditions iso fiber stretch Filament carbon fiber stretch Carbon fiber performance Fiber stretcher carbon fiber modification extensometer unit tensile properties Carbon fiber performance monofilament Fiber tensioner carbon fiber standard Carbon Fiber Tensile Test Carbon Fiber Tensile Test Drawing Spinning Machine carbon fiber stretch carbon fiber carbon carbon Measurement of Tensile Properties Fiber property measurement functional stretch Stretch in English Carbon fiber ton Instruments for Measuring Tensile Properties Tensile Properties of Conjugated Polymers stretching principle stretching principle Fiber stretcher Fiber drawing device The principle of stretching GBT31290 GB/T 31290-2014 GB/T 31290-2022 Monofilament Tensile Properties fiber monofilament to stretch Hot fiber equipment Carbon fiber tensile standards Latest carbon fiber testing Determination of tensile properties of wires carbon fiber group Tensile standards for carbon fiber panels Elastomer tensile property testing Carbon fiber pole testing Uniaxial stretching stretch rate Testing of fiber tensile modulus Optical fiber tensile testing Carbon fiber industry carbon fiber filament execution Single fiber tensile property test Monofilament properties Monofilament drawing Fiber monofilament tensile strength test Standard single fiber stretch gb 31290-2022 gb/t 31290

《GB/T 31290-2022碳纤维单丝拉伸性能的测定》由TC572（全国碳纤维标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Introduction

Analysis of core changes in the new standard

Compared with GB/T31290-2014 version, the 2022 standard adds the key parameter definition of apparent tensile elastic modulus, introduces specimen preload control and an improved compliance correction system, and reshapes the test process accuracy standard.

Key technology upgrade matrix

Technical dimensions	2014 version	2022 version upgrade points
Elastic modulus calculation	Single method	New method A/B dual mode (see 9.2.1/9.2.2)
Elongation correction mechanism	Conventional correction	08 Newly added system compliance dynamic correction model (see Appendix A for details)

Standardized experimental operation process

Sampling and trimming: ensure 10cm reference length (see clause 7.1 for details)
Cross-sectional measurement: implement laser diffraction method and Olympus optical system in parallel (refer to GB/T29762)
Parameter setting: crosshead speed is calibrated to the range of 1-5mm/min (as specified in clause 8.2.2)

Advanced data processing model

Method A Elastic modulus calculation formula:
E_f,A=ΔF_AA_fL×10³/(ΔL_A-KΔF_A)

Equipment calibration key parameter table

Equipment	Accuracy	Calibration cycle
Tensile testing machine	>Measurement value 1%	200h/time

Implementation and application recommendations

Adhesive according to the selection specification of monofilament polymer (recommended list in clause 6.3)
Preload is recommended to be graded and matched according to the target strain (refer to parameter system in Table 1)
Dynamic compliance verification cycle is shortened to 72h (involving high-frequency testing)

More samples: NB/T 47013.2-2015 JJG 21-2008 DL/T 368-2010

Sample only — not a preview of GB/T 31290-2022

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