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GB/T 35465.5-2020: Test method for fatigue properties of polymer matrix composite materials - Part 5: Flexural fatigue
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| GB/T 35465.5-2020 | English | 129 |
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Test method for fatigue properties of polymer matrix composite materials - Part 5: Flexural fatigue
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GB/T 35465.5-2020
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Basic data | Standard ID | GB/T 35465.5-2020 (GB/T35465.5-2020) | | Description (Translated English) | Test method for fatigue properties of polymer matrix composite materials - Part 5: Flexural fatigue | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q23 | | Classification of International Standard | 83.120 | | Word Count Estimation | 7,789 | | Date of Issue | 2020-11-19 | | Date of Implementation | 2021-10-01 | | Quoted Standard | GB/T 35465.1; GB/T 35465.2; ISO 14125 | | Regulation (derived from) | National Standard Announcement No. 26 of 2020 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the terms and definitions, principles, test equipment, specimens, condition adjustment and test environment, test procedures, test results, data processing and test reports for the bending fatigue performance test methods of polymer matrix composites. This standard applies to the bending fatigue performance test of polymer matrix composites under constant amplitude and constant frequency cyclic loading conditions. | GB/T 35465.5-2020: Test method for fatigue properties of polymer matrix composite materials - Part 5: Flexural fatigue
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Test method for fatigue properties of polymer matrix composite materials - Part 5.Flexural fatigue
ICS 83.120
Q23
National Standards of People's Republic of China
Test method for fatigue performance of polymer matrix composites
Part 5.bending fatigue
2020-11-19 released
2021-10-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Foreword
GB/T 35465 "Test Method for Fatigue Performance of Polymer Matrix Composites" is divided into 6 parts.
---Part 1.General rules;
---Part 2.Statistical analysis of linear or linearized stress life (SN) and strain life (ε-N) fatigue data;
---Part 3.Pull-pull fatigue;
---Part 4.Tension-compression and compression-compression fatigue;
---Part 5.Bending fatigue;
---Part 6.Adhesive tensile shear fatigue.
This part is Part 5 of GB/T 35465.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part is proposed by China Building Materials Federation.
This part is under the jurisdiction of the National Fiber Reinforced Plastics Standardization Technical Committee (SAC/TC39).
Drafting organizations of this section. Beijing FRP Research and Design Institute Co., Ltd., Mingyang Smart Energy Group Co., Ltd., Sinoma Technology Wind Power Plant
Co., Ltd., Taishan Fiberglass Co., Ltd., Shangwei New Material Technology Co., Ltd., Jushi Group Co., Ltd., Zhejiang Hengshi
Fiber Foundation Co., Ltd., Chongqing International Composite Materials Co., Ltd., Shanghai FRP Research Institute Co., Ltd., Shanghai Kangda New Chemical Materials
Materials Group Co., Ltd., Wuhan University of Technology, Shandong Institute of Non-metallic Materials.
The main drafters of this section. Wang Zhen, Zhou Xinwei, Wang Dongsheng, Gao Keqiang, Wang Yanli, Liu Honggang, Liu Lifeng, Cui Fengbo, Hu Hongmei,
Meng Xiangyan, Ji Yongjing.
Test method for fatigue performance of polymer matrix composites
Part 5.bending fatigue
1 Scope
This part of GB/T 35465 specifies the terms and definitions, principles, and tests of the bending fatigue performance test methods for polymer matrix composites
Equipment, samples, condition adjustment and test environment, test procedures, test results and data processing and test reports.
This section applies to the bending fatigue performance test of polymer matrix composites under constant amplitude and constant frequency cyclic loading conditions.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
GB/T 35465.1 Fatigue performance test methods of polymer matrix composites Part 1.General rules
GB/T 35465.2 Fatigue performance test methods of polymer matrix composites Part 2.Linear or linearized stress life (SN)
And strain life (ε-N) fatigue data statistical analysis
ISO 14125 Determination of the flexural properties of fiber reinforced plastic composites
3 Terms and definitions
The following terms and definitions defined by ISO 14125 and GB/T 35465.1 apply to this document.
3.1
Bending fatigue
Fatigue under alternating bending stress or strain.
4 Principle
Under different bending stress or strain levels, cross the specimen with a constant stress or strain amplitude, stress ratio or strain ratio and frequency.
Change the stress or strain until the specimen fails, analyze and process the test results, and draw the stress life (SN) or strain life (ε-N) curve.
5 Test equipment
5.1 Testing machine
5.1.1 The test equipment should meet the requirements of GB/T 35465.1.
5.1.2 The size measurement tool should be accurate to 0.01mm.
5.2 Bend test device
The loading method is divided into three-point bending method and four-point bending method. The loading diagram of the three-point bending method is shown in Figure 1, and the loading diagram of the four-point bending method
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