The Use of 2D and 3D High-Speed Digital Image Correlation in Full Field Strain Measurements of Composite Materials Subjected to High Strain Rates

Proceedings

Verleysen, Patricia¹  Elmahdy, Ahmed² 

[1] Author to whom correspondence should be addressed.;MST-DyMaLab Research Group, Department EEMMeCS, Faculty of Engineering and Architecture, Ghent University, Tech Lane Ghent Science Park, Zwijnaarde 9052, Belgium

关键词: composites;    high strain rate;    digital image correlation;    split Hopkinson bar;   

DOI  :  10.3390/ICEM18-05439

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

The aim of this paper is to assess and compare the performance of both high speed 2D and 3D digital image correlation (DIC) configurations in the characterization of unidirectional carbon fiber reinforced epoxy composites in high strain rate tension in the transverse direction. The criteria for assessment were in terms of strain resolution and measuring the strain localization within the gauge section. Results showed the high-speed 3D DIC technique has lower strain resolution compared to the high-speed 2D DIC technique. In addition, the analysis of the full strain fields indicated that the 3D DIC technique could accurately locate and measure the concentrations of strains within the gauge section of the tested samples.

【 授权许可】

CC BY