Method for synchronously characterizing mechanical property and microstructure of single granular mass

The invention discloses a method for synchronously characterizing the mechanical property and the microstructure of a single granular material, which is suitable for synchronously characterizing the mechanical property and the microstructure of explosive granular materials, other energetic material crystals or granular materials. The test process comprises the six steps of sample preparation, sample installation, mechanical-optical microscope combined test system parameter adjustment, mechanical-optical real-time monitoring test, granular mixture compression performance and optical image analysis, mechanical performance and microstructure synchronous characterization and the like. A set of special compression test fixture is designed, and evaluation basis for synchronous characterization of mechanical properties and a microstructure is provided. According to the method, the deformation characteristic of the single granular mixture in the pressing process is monitored, the test process is observable, the test