A 2D mark shearing technique for characterizing the mechanical properties of material

Tao Hua, Huimin Xie*, Fulong Dai, Pengwan Chen, Qingming Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The digital image correlation (DIC) method has been widely used in mechanical experiments due to their non-contact, full-field feature and high accuracy in displacement measurement. Yet the precision in strain determination is not so desirable. In this paper, a 2D mark shearing technique was proposed to improve the accuracy of the strain measurement in both vertical direction and horizontal direction. A four-prism system was designed and used to introduce a shearing distance of the marks, which were made on the specimen to calculate the two strain components. The measurement principle of the mark shearing technique is described in detail. A tensile experiment using an aluminum sample was conducted, and the Young's modulus and Poisson ratio were measured. The successful experimental results demonstrated the feasibility of this method.

Original languageEnglish
Article number025311
JournalMeasurement Science and Technology
Volume21
Issue number2
DOIs
Publication statusPublished - 2010

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Hua, T., Xie, H., Dai, F., Chen, P., & Zhang, Q. (2010). A 2D mark shearing technique for characterizing the mechanical properties of material. Measurement Science and Technology, 21(2), Article 025311. https://doi.org/10.1088/0957-0233/21/2/025311