GB/T 46774-2025 Active National standards

GB/T 46774-2025 Metallic materials—Test method of dynamic fracture toughness at high strain rates

GB/T 46774-2025 Metallic materials—Test method of dynamic fracture toughness at high strain rates

Publish Date: 2025-12-02 Implement Date: 2026-07-01 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 46774-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: \n Test methods for the mechanical properties of metals

ICS Name: Mechanical testing of metal materials

Publish Date: 2025-12-02

Implement Date: 2026-07-01

Pages: 40 pages

Scope

This document specifies the principles, specimens, testing equipment, testing procedures, numerical rounding of test results, and test reports for the dynamic fracture toughness testing of metal materials at high strain rates.
This document is applicable to the determination of the dynamic fracture toughness of metal materials under high strain rates (where the rate of change of the stress intensity factor exceeds 3 MPa·m1/2s-1).

Development Information

Word Count: 60 Thousand words Pages: 40 pages

Referenced Standards

GB/T 3808-2002 Verification of pendulum-type impact testing machines(ISO 148-2:1998,Metallic materials—Charpy pendulum impact test—Part 2:Verification of test machines, MOD) GB/T 3808-2018 Verification of pendulum-type impact testing machines GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 19748-2005 Steel—Charpy V-notch pendulum impact test—Instrumented test method GB/T 19748-2019 Metallic materials—Charpy V-notch pendulum impact test—Instrumented test method GB/T 20832-2007 Metallic materials—Designation of test specimen axes in relation to product texture GB/T 21143-2025 Metallic materials—Unified method of test for determination of quasistatic fracture toughness JJF 1445-2014 Calibration Specification for Falling Weight Impact Testing Machines

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