RESEARCH ARTICLE
Calculation Principle and Test Applications for Digital Speckle Correlation Technology
Yongsheng Liu*, Zhang-lin CHEN, Wang Liu, Xinyu Dong
Article Information
Identifiers and Pagination:
Year: 2014Volume: 8
First Page: 237
Last Page: 242
Publisher ID: TOCIEJ-8-237
DOI: 10.2174/1874149501408010237
Article History:
Received Date: 23/7/2014Revision Received Date: 7/8/2014
Acceptance Date: 8/8/2014
Electronic publication date: 29/9/2014
Collection year: 2014
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
With SSD algorithm and calculus process in detail computing, the basic calculation principles and the solution process from digital image to displacement of digital speckle correlation technology were described. Then the digital speckle correlation technology were used to the tensile test of CFRP plate embedded reinforcement beams, obtained the displacement cloud image and destruction rules of the specimens. The results show that the calculation results analyzed by the digital image correlation technology are in good agreement with the experimental phenomena. And the technology has the characteristic of full field measurement, simple operation, strong adaptability and high precision, so it has the widespread application prospect, especially suitable for application in the mechanical properties of materials under complex conditions, a large section of the destruction process monitoring and other fields.