研究目的
To propose and evaluate a novel technique for measuring deformation in the presence of discontinuities using Digital Image Correlation (DIC) with subset segmentation.
研究成果
The proposed technique successfully measures the deformation in the presence of discontinuities with accuracy higher than 1/10th of a pixel. It performs better and has lower errors compared to the recently published DDIC technique.
研究不足
The proposed technique assumes that discontinuities passing through the subset are straight lines, which may not always be the case in real-world scenarios. Additionally, the technique's performance is dependent on the pattern existing in each segmented part of the subset and its size.
1：Experimental Design and Method Selection:
The study proposes a novel technique that segments the subset of an image into multiple parts for correlation process to measure deformation in the presence of discontinuities.
2：Sample Selection and Data Sources:
Simulated reference and deformed images of 300 × 300 pixels are generated using DISTRESS simulator.
3：List of Experimental Equipment and Materials:
DISTRESS simulator for generating testing images.
4：Experimental Procedures and Operational Workflow:
The proposed technique involves selecting a point on the reference image, applying DIC, and in case of failure, segmenting the subset into parts for correlation.
5：Data Analysis Methods:
The performance of the proposed technique is evaluated by comparing the measured deformation with introduced displacements.
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