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Title: Strain and distortion monitoring during arc welding by 3D digital image correlation

Abstract

A novel three-dimensional (3D) digital image correlation (DIC) approach using a stereovision system was developed to measure the evolution of strain and distortion near the fusion zone during the gas tungsten arc welding process. Unlike the previously reported two-dimensional (2D) DIC approach using a single camera, the 3D DIC method was immune to the out-of-plane displacement and was capable of measuring 3D deformation. Both 2D and 3D DIC approaches in welding applications were based on the utilisation of the novel high-temperature speckle and the pulsed laser illumination plus bandpass filters. However, the speckle pattern was partially specular reflective causing issues in subset matching in the 3D approach. In conclusion, a new algorithm and experimental procedure was incorporated to solve this problem.

Authors:
ORCiD logo [1]; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1468267
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Science and Technology of Welding and Joining
Additional Journal Information:
Journal Volume: 23; Journal Issue: 6; Journal ID: ISSN 1362-1718
Publisher:
Taylor & Francis
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; welding; distortion; strain; digital image correlation; binocular stereovision; specular reflection

Citation Formats

Chen, Jian, and Feng, Zhili. Strain and distortion monitoring during arc welding by 3D digital image correlation. United States: N. p., 2018. Web. doi:10.1080/13621718.2017.1422634.
Chen, Jian, & Feng, Zhili. Strain and distortion monitoring during arc welding by 3D digital image correlation. United States. doi:10.1080/13621718.2017.1422634.
Chen, Jian, and Feng, Zhili. Tue . "Strain and distortion monitoring during arc welding by 3D digital image correlation". United States. doi:10.1080/13621718.2017.1422634. https://www.osti.gov/servlets/purl/1468267.
@article{osti_1468267,
title = {Strain and distortion monitoring during arc welding by 3D digital image correlation},
author = {Chen, Jian and Feng, Zhili},
abstractNote = {A novel three-dimensional (3D) digital image correlation (DIC) approach using a stereovision system was developed to measure the evolution of strain and distortion near the fusion zone during the gas tungsten arc welding process. Unlike the previously reported two-dimensional (2D) DIC approach using a single camera, the 3D DIC method was immune to the out-of-plane displacement and was capable of measuring 3D deformation. Both 2D and 3D DIC approaches in welding applications were based on the utilisation of the novel high-temperature speckle and the pulsed laser illumination plus bandpass filters. However, the speckle pattern was partially specular reflective causing issues in subset matching in the 3D approach. In conclusion, a new algorithm and experimental procedure was incorporated to solve this problem.},
doi = {10.1080/13621718.2017.1422634},
journal = {Science and Technology of Welding and Joining},
number = 6,
volume = 23,
place = {United States},
year = {2018},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 2 works
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