GB/T 35465.1-2017 in English

GB/T 35465.1—2017 Standard Interpretation

GB/T 35465.1—2017 "Test Methods for Fatigue Performance of Polymer Matrix Composites Part 1: General Rules" is a standard applicable to fatigue testing of polymer matrix composites under constant amplitude and constant frequency cyclic loading conditions. This standard specifies the general requirements for the test, including terms and definitions, test equipment, specimen processing requirements, state adjustment and test environment.

Standard Background and Technology Evolution

Polymer matrix composites have been widely used in aerospace, energy, transportation and other fields due to their excellent performance. However, their fatigue performance is a key factor affecting their service life. This standard was drafted based on the GB/T1.1—2009 rules, proposed by the China Building Materials Federation, and managed by the National Technical Committee for Standardization of Fiber Reinforced Plastics.

Test equipment and requirements

Specimen processing requirements

Implementation suggestions

1. Test planning:According to the material properties, select the appropriate stress ratio and strain level. It is recommended to use 70%, 60%, 50%, and 40% of the static strength as the classification for tension-compression fatigue tests.
2. Data processing:Perform statistical analysis in accordance with GB/T 35465.2 and generate SN or ε-N curves to evaluate the material life.
3. Environmental control: Ensure that the test environment is consistent with the sample state adjustment conditions to avoid temperature fluctuations affecting the test results.