GB/T 47549-2026 Pending National standards

GB/T 47549-2026 Plastics—Determination of fracture toughness—J-R curves approach

GB/T 47549-2026 Plastics—Determination of fracture toughness—J-R curves approach

Publish Date: 2026-04-30 Implement Date: 2026-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 47549-2026

Standard Type: National standards

Standard Status: Pending

is_force_gb: no

CCS Name: Basic standards and general methods for synthetic resins and plastics

ICS Name: Plastic Composite

Publish Date: 2026-04-30

Implement Date: 2026-11-01

Pages: 32 pages

Scope

This document describes the method of determining the fracture toughness of plastics based on the J-R curve.
This document is applicable to tough and semi-tough polymers and their blends, but not to materials that cannot distinguish between the crack front and the plastic deformation at the crack tip.
This document is not applicable to fiber-reinforced materials.
Note: The crack propagation resistance that cannot be characterized by the GB/T 41932 linear elastic fracture mechanics method is characterized by the J-R curve obtained by this method.

Development Information

Word Count: 44 Thousand words Pages: 32 pages

Referenced Standards

GB/T 2918-1998 Plastics—Standard atmospheres for conditioning and testing GB/T 2918-2018 Plastics—Standard atmospheres for conditioning and testing GB/T 12160-2002 Calibration of extensometers used in uniaxial testing GB/T 12160-2019 Metallic materials—Calibration of extensometers systems used in uniaxial testing GB/T 16825.1-2002 Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system GB/T 16825.1-2008 Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system GB/T 16825.1-2022 Metallic materials—Calibration and verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Calibration and verification of the force-measuring system GB/T 39812-2021 Plastics—Preparation of test specimens by machining GB/T 41932-2022 Plastics—Determination of fracture toughness(GIC and KIC)—Linear elastic fracture mechanics (LEFM) approach GB/T 44535-2024 Plastics—Determination of linear dimensions of test specimens

Adopt standards

ISO/TS 28660:2022

Related Standards

GB/T 12000-1989 Replaced

GB/T 12000-1989 Plastics—Test methods of exposure to damp heat, steady state

Publish Date: 1989-12-25

GB/T 15585-1995 Abolished

GB/T 15585-1995 Determination of shrinkage for injection moulding thermoplastics

Publish Date: 1995-06-12

GB/T 15596-1995 Replaced

GB/T 15596-1995 Plastics—Determination of changes in Color and variations in properties after exposure to daylight under glass, natural weathering or artificial light

Publish Date: 1995-06-12

GB/T 15598-1995 abolished_transferred

GB/T 15598-1995 Testing methods for shear strength of plastics by punch tool

Publish Date: 1995-06-12

GB/T 1843-1996 Replaced

GB/T 1843-1996 Plastics—Determination of izod impact strength

Publish Date: 1996-06-14

GB/T 2035-1996 Replaced

GB/T 2035-1996 Terms and definitions for plastics

Publish Date: 1996-06-14