GB/T 38515-2020The method for high temperature mechanical properties of quartz fabric-reinforced resin matrix composite materials (English PDF)
石英纤维织物增强树脂基复合材料高温力学性能试验方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
March 6, 2020
Implementation date
February 1, 2021
Scope
GB/T 38515-2020 is the English-translated version of 石英纤维织物增强树脂基复合材料高温力学性能试验方法.
GB/T 38515-2020 is the Chinese standard "The method for high temperature mechanical properties of quartz fabric-reinforced resin matrix composite materials". Its scope clause reads: This standard specifies the general requirements, tests, test results, and experiment report.
This standard applies to the tensile strength of two-dimensional woven structure quartz fiber fabric reinforced resin-based composites when the test temperature is not higher than 500 ° C. Testing of properties, compressive properties, bending properties and short beam shear strength.
Other fiber-reinforced resin-based composite materials can be used as a reference. Its clauses include general requirements.
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Document preview — GB/T 38515-2020
National Standard of the People's Republic of China
- ICS
- 83.120
- Classification
- Q 23
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 General requirements
- 3.1 Test equipment
- 3.2 Test specimen
1 Scope
This standard specifies the general requirements, tests, test results, and experiment report.
This standard applies to the tensile strength of two-dimensional woven structure quartz fiber fabric reinforced resin-based composites when the test temperature is not higher than 500 ° C.
Testing of properties, compressive properties, bending properties and short beam shear strength. Other fiber-reinforced resin-based composite materials can be used as a reference.
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 1446-2005 General rules for test methods of fiber reinforced plastics
GB/T 1447-2005 Test method for tensile properties of fiber reinforced plastics
GB/T 1448-2005 Test method for compression properties of fiber reinforced plastics
GB/T 1449-2005 Test method for flexural properties of fiber reinforced plastics
GB/T 30969-2014 Test method for shear strength of polymer-based composite short beams
3 General requirements
3.1 Test equipment
3.1.1 Test machine
According to the provisions of 5.1.1 ~ 5.1.4 in GB/T 1446-2005.
3.1.2 Deformation measuring device
The accuracy level of the deformation measurement device should not be lower than level 1. Can use high temperature extensometer (deflection meter), high temperature strain gauge
Shape measuring device or high temperature non-contact deformation measuring device.
3.1.3 High temperature device
3.1.3.1
The high-temperature device should be able to meet the requirements of high-temperature testing, and ensure that the entire sample is in a uniform temperature zone, and the temperature deviation should not exceed
± 3 °C, temperature uniformity should not exceed 4 °C. When the test temperature is not greater than 300 ° C, the high temperature device should be able to ensure that the sample is within 10 minutes
Heating to the specified test temperature; when the test temperature is greater than 300 ° C, the high temperature device should ensure that the sample is heated to the specified temperature within 20 minutes.
Test temperature.
3.1.3.2
The temperature measuring sensor shall be able to test the outer surface temperature of the working section or span section of the sample, and its permissible deviation is class II and above.
3.2 Test specimen
According to GB/T 1446-2005 Chapter 4.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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