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Test methods for continuous silicon carbide fiber -- Part 5: Tensile properties of single-filament fiber
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Basic data
| Standard ID | GB/T 34520.5-2017 (GB/T34520.5-2017) |
| Description (Translated English) | Test methods for continuous silicon carbide fiber -- Part 5: Tensile properties of single-filament fiber |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | V13 |
| Classification of International Standard | 49.025.99 |
| Word Count Estimation | 10,192 |
| Date of Issue | 2017-11-01 |
| Date of Implementation | 2018-05-01 |
| Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China |
GB/T 34520.5-2017: Test methods for continuous silicon carbide fiber -- Part 5: Tensile properties of single-filament fiber
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test methods for continuous silicon carbide fiber-Part 5. Tensile properties of
ICS 49.025.99
V13
National Standards of People's Republic of China
Continuous silicon carbide fiber test method
Part 5. Tensile properties of single fibers
Part 5.Tensilepropertiesofs
Posted.2017-11-01
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
GB/T 34520 "continuous silicon carbide fiber test method" is divided into seven parts.
--- Part 1. Beam wire sizing rate;
--- Part 2. Single fiber diameter;
--- Part 3. Line density and density;
--- Part 4. Beam tensile properties;
--- Part 5. Tensile properties of single fibers;
--- Part 6. Resistivity;
--- Part 7. High temperature strength retention.
This section GB/T 34520 Part 5.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This part is proposed by China Aerospace Science and Technology Corporation.
This part of the National Aerospace Technology and Application Standardization Technical Committee (SAC/TC425) centralized.
This part of the drafting unit. National University of Defense Technology.
The main drafters of this section. Wang Jun, Wang Hao, Jane Branch, Wang Yifei, Song Yongcai, Wang Yingde, Shao Changwei, Gou Yan Zi, Wang Xiaowu, Wang Bing,
Tang 祚 Jiao.
Continuous silicon carbide fiber test method
Part 5. Tensile properties of single fibers
1 Scope
GB/T 34520 provisions of this part of the continuous silicon carbide (siliconcarbide, SiC) single fiber tensile properties of the test environment,
Test equipment and materials, sample preparation, test procedures, calculation of test results and test reports.
This section applies to continuous SiC single fiber tensile strength, tensile modulus and elongation at break test.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
For all undated references, the latest edition (including all amendments) applies to this document.
GB/T 1446 fiber-reinforced plastics performance test methods General
Textile and textile materials - Performance and test terms - Part 3. General
GB/T 4146.3 Textiles chemical fibers Part 3. Inspection terms
GB/T 8170 rounded repair rules and limit values of the representation and judgment
GB/T 18374 Reinforcement terms and definitions
Test methods for continuous silicon carbide fibers - Part 1. String sizing rate
Methods of test for continuous silicon carbide fibers - Part 2. Single fiber diameter
Test methods for continuous silicon carbide fibers - Part 4. Tensile properties of bundles
3 Terms and definitions
GB/T 3291.3, GB/T 4146.3, GB/T 18374 and GB/T 34520.1-2017 defined terms and definitions apply to this
file.
4 test principle
The tensile strength and tensile modulus of the continuous SiC monofilament are determined by tensile loading of single fiber specimens until failure. Stretch
The strength is obtained by dividing the breaking load by the cross-sectional area of the continuous SiC single fiber, and the tensile modulus of elasticity is the difference between the amount of stress change and the corresponding strain change
Volume ratio. Elongation at break is the ratio of elongation to gauge length at break of a single fiber loaded to a maximum load.
5 test environment
5.1 Standard test Environmental conditions according to the provisions of GB/T 1446 implementation, the temperature is 23 ℃ ± 2 ℃, relative humidity of 50% ± 10%.
5.2 In other environmental conditions for testing, the test environment temperature and relative humidity should be specified in the test report.
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