Applying Digital Image Correlation Techniques to Measure the Crack Variation of Steel Plate under Tension

Abstract:

Water gate is one of important equipments for arbitrating water supply and maintaining safety of dam. Water gate is made of high tensile strength of steel plate, this kind of steel plate used as constructional material of water gate is weighed for the economical consideration. Steel plate must be cut, welded and rivet to manufacture water gate. Thus, there are some crevices, induced by the defects of material, bad construction, seismic excitation and errors of size, on water gate. This phenomena causes stress concentration, induced high crack increase rate, affect the safety and usage of water gate. In this research, digital image correlation method is developed to measure the mechanics behavior of single steel plate and bi-steel plate with crevices under tension force according to the characteristics of water gate filed test. The test and analysis results of laboratory test reveal that this digital image correlation method can easily indentify the corrosion point on the steel plate. Otherwise, the crack variation of crack tip of steel plate-single steel plate and bi-material steel plate under loadings can be easily identified by the laboratory test.

• Periodical: Advanced Materials Research (Volumes 912-914)
• Pages: 1500-1504
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.912-914.1500
• Online since: April 2014
• Authors: Wen Pei Sung, Ming Hsiang Shih*, Hung Chang Chang
• Keywords: Crevice, Digital Image Correlation Technique, Monitoring, Steel Plate

References

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