双向拉伸实验 - 新拓三维技术（深圳）有限公司

Biaxial tension test

Purpose of measurement

With MTS biaxial tension testing machine, the biaxial tension test of aluminium alloy specimens was carried out. The surface strain field of the specimens was observed and the mechanical properties were analyzed.

Brief introduction of experiment

The size of the middle zone of the specimen is 30mm x 30mm. The deformation during tension is measured by 230 industrial cameras and Schneider lens.

测量试件

实验现场

Inspection process

（1）Speckle pattern was prepared on stretching specimen.

（2）Calibration of the camera and acquisition of internal and external parameters of the camera.

（3）Two industrial cameras collect data synchronously through biaxial stretching test.

Data analysis

The deformation trend of the two specimens is consistent with the expectation and finite element simulation, the deformation data of the key points can be analyzed. The system can communicate with the two force signals of the testing machine and measure the relevant mechanical properties parameters.

（4）Data analysis and acquisition of displacement and strain fields.

应变场1

应变场2