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Testing methods for tensile mechanical properties of plant short individual fibers
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GB/T 35378-2017
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Basic data Standard ID | GB/T 35378-2017 (GB/T35378-2017) | Description (Translated English) | Testing methods for tensile mechanical properties of plant short individual fibers | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | B67 | Classification of International Standard | 59.060.10 | Word Count Estimation | 10,183 | Date of Issue | 2017-12-29 | Date of Implementation | 2018-07-01 | Regulation (derived from) | National Standards Bulletin 2017 No. 32 | 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 35378-2017: Testing methods for tensile mechanical properties of plant short individual fibers ---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.
Testing methods for tensile mechanical properties of plant short individual fibers
ICS 59.060.10
B67
National Standards of People's Republic of China
Tensile mechanical properties of single staple fiber plant
2017-12-29 Posted
2018-07-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard proposed by the State Forestry Administration.
This standard by the National Standardization Technical Committee bamboo and rattan (SAC/TC263) centralized.
This standard was drafted unit. International Bamboo and Rattan Center, Zhejiang Academy of Forestry, Beijing Forestry University, the quality of national fiber textile products
Quantity Supervision and Inspection Center, Shanghai Zhong Chen Digital Technology Equipment Co., Ltd. and so on.
The main drafters of this standard Wang Ge, Cheng Haitao, Yu Yan, Zhang Weifu, Zhang Shuangbao, Kong Liping, Qin Yanhua, Chen Lu Tie.
Introduction
The mechanical properties of plant fibers have a direct impact on the macroscopic mechanical properties of the composites. Due to plant fiber morphology,
Structure and chemical composition of the complexity and variability, its mechanical properties of the characterization experiment more difficult. In particular, some important plants are short
Fiber, such as wood, bamboo and other fibers, the single fiber size is tiny, the length is generally between 1.2mm ~ 5.0mm, diameter 10μm ~
50μm, the traditional long-fiber tensile test technology is difficult to implement.
Since the.1990s, relevant researchers at home and abroad have developed the "V-groove fiber holding technology" and the corresponding test equipment, compared with
A good solution to the mechanical properties of plant staple fibers in the test of fiber clamping, orientation and fiber cell wall area measurement and other key technologies
Difficulties, however, are susceptibility to many factors such as instrumentation, environment, methods, samples, and experimenters when testing with this technique
Resulting in poor repeatability and comparability of results. Therefore, there is an urgent need to standardize the tensile mechanical properties of single staple fiber plant
experiment method.
Tensile mechanical properties of single staple fiber plant
1 Scope
This standard specifies the principle of mechanical properties of single staple fiber plant, test equipment, sample preparation and testing methods.
This standard applies to the length of 1.2mm ~ 5.0mm plant single staple fiber (such as bamboo, wood, rattan and jute, linen and other hemp fiber) determination.
Tensile mechanical properties of other lengths of single plant fiber can also be determined by reference to this standard.
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
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Textile and textile materials - Performance and test terms - Part 1. Fibers and yarns
GB/T 8170 rounded repair rules and limit values of the representation and judgment
Test methods for tensile properties of chemical fiber filaments
3 Terms and definitions
GB/T 3291.1 defined and the following terms and definitions apply to this document.
3.1
Tensile stress tensilestress
Tensile load and fiber cross-section of the physical (excluding fiber hollow part) area ratio.
3.2
Tensile strength tensilestrength
The maximum stress to which the specimen is subjected to tensile fracture.
3.3
Tensile strainstrain
Under the tensile load, the length of the sample within the span of the change in the ratio of its initial length.
3.4
Tensile modulus of elasticity
The tensile strain and tensile strain ratio of the specimen in the elastic range.
3.5
Stress-strain curve stress-straindiagram
To strain into abscissa, stress for the vertical axis of the mapping diagram.
3.6
Elongation at break elongationatbreak
Under tensile load, the ratio of the displacement elongation to the span of the specimen when it breaks occurs.
3.7
Dry fracture load air-driedbreakingload
In the dry state, the sample by the external force to break the maximum load can withstand.
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