GB/T 38338-2019Test method for fracture toughness of carbon materials (English PDF)
炭素材料断裂韧性测定方法
This is a limited preview
Buy now to download the full PDF (15 pages)
Need quotation for your management?
Get a formal quotation for GB/T 38338-2019 in 30 minutes.
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 10, 2019
Implementation date
July 1, 2020
Scope
GB/T 38338-2019 is the English-translated version of 炭素材料断裂韧性测定方法.
GB/T 38338-2019 is the Chinese standard "Test method for fracture toughness of carbon materials". Its scope clause reads: This standard specifies the terms and definitions of fracture toughness of carbon materials, equipment, sample requirements, test procedures, calculation of results and tests. report.
This standard applies to the determination of fracture toughness of carbon materials at room temperature. Its clauses include terms and definitions; equipment.
Found what you need?
Document preview — GB/T 38338-2019
National Standard of the People's Republic of China
- ICS
- 29.050
- Classification
- Q 51
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 terms and definitions
- 4 Equipment
1 Scope
This standard specifies the terms and definitions of fracture toughness of carbon materials, equipment, sample requirements, test procedures, calculation of results and tests.
report.
This standard applies to the determination of fracture toughness of carbon materials at room temperature.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 1427 Carbon material sampling method
GB/T 8170 Numerical rounding rules and expression and judgment of limit values
3 terms and definitions
The following terms and definitions apply to this document.
3.1 Fracture toughness
K1C
The critical stress intensity factor necessary for the growth of cracks under loading pressure is used to characterize the material's ability to prevent crack growth.
4 Equipment
4.1 Vernier caliper
measuring range 0mm ~ 300mm, accuracy 0.02mm.
4.2 Micrometer
Measuring range 0mm ~ 25mm, accuracy 0.01mm.
4.3 Image measuring instrument
Accuracy is 0.001mm, other measuring instruments with suitable magnification function are also available.
4.4 Drying box
With automatic temperature adjustment device, it can keep the temperature between 105 °C ~ 110 °C.
4.5 Material testing machine
The accuracy of the sensor of the testing machine is less than or equal to 1%, and the recommended maximum load of the sample is 10% of the sensor range.
90%. The test fixture requirements are shown in Figure 1. The upper and lower fulcrum rollers can roll freely, and the roller diameter is 0.75 to 1.5 times the sample height.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
How to Download GB/T 38338-2019
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB/T 10003-2026 — Biaxially oriented polypropylene (BOPP) film
GB/T 10004-2026 — Plastic/Plastic laminated films and pouches for packaging
GB/T 10007-2026 — Rigid cellular plastics - Determination of shear properties
Secure payment via Stripe
Payments accepted
GB/T 38338-2019
$135.00