Residual stress measurement on the butt-welded area by electronic speckle pattern interferometry
Background: Residual stress always exists on any kind of welded area. This residual stress can cause the welded material to crack or fracture. For many years, the hole-drilling method has been widely used for measuring residual stress. However, this method is destructive. Nowadays, electronic speckl...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2015-02-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573314000047 |
| _version_ | 1818159609285705728 |
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| author | Kyeongsuk Kim Taeho Choi Man gyun Na Hyunchul Jung |
| author_facet | Kyeongsuk Kim Taeho Choi Man gyun Na Hyunchul Jung |
| author_sort | Kyeongsuk Kim |
| collection | DOAJ |
| description | Background: Residual stress always exists on any kind of welded area. This residual stress can cause the welded material to crack or fracture. For many years, the hole-drilling method has been widely used for measuring residual stress. However, this method is destructive. Nowadays, electronic speckle pattern interferometry (ESPI) can be used to measure residual stress with or without the hole-drilling method. ESPI is an optical nondestructive testing methods that use the speckle effect. Mechanical properties can be measured by calculation of the phase difference by the variation of temperature, pressure, or loading force.
Methods: In this paper, the residual stress on the butt-welded area is measured by using ESPI with a suggested numerical calculation. Two types of specimens are prepared. Type I is made of pure base metal part and type II has a welded part at the center. These specimens are tensile tested with a material test system. At the same time, the ESPI system was applied to this test.
Results: From the results of ESPI, the elastic modulus and the residual stress around the welded area can be calculated and estimated.
Conclusion: With this result, it is confirmed that the residual stress on the welded area can be measured with high precision by ESPI. |
| first_indexed | 2024-12-11T15:48:42Z |
| format | Article |
| id | doaj.art-292b51ea12444635a988476049347e8c |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-11T15:48:42Z |
| publishDate | 2015-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-292b51ea12444635a988476049347e8c2022-12-22T00:59:38ZengElsevierNuclear Engineering and Technology1738-57332015-02-0147111512510.1016/j.net.2014.09.001Residual stress measurement on the butt-welded area by electronic speckle pattern interferometryKyeongsuk Kim0Taeho Choi1Man gyun Na2Hyunchul Jung3Department of Mechanical System Engineering, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 501-759, Republic of KoreaDepartment of Mechanical System Engineering, Graduate School, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 501-759, Republic of KoreaDepartment of Nuclear Engineering, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 501-759, Republic of KoreaDepartment of Mechanical System Engineering, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 501-759, Republic of KoreaBackground: Residual stress always exists on any kind of welded area. This residual stress can cause the welded material to crack or fracture. For many years, the hole-drilling method has been widely used for measuring residual stress. However, this method is destructive. Nowadays, electronic speckle pattern interferometry (ESPI) can be used to measure residual stress with or without the hole-drilling method. ESPI is an optical nondestructive testing methods that use the speckle effect. Mechanical properties can be measured by calculation of the phase difference by the variation of temperature, pressure, or loading force. Methods: In this paper, the residual stress on the butt-welded area is measured by using ESPI with a suggested numerical calculation. Two types of specimens are prepared. Type I is made of pure base metal part and type II has a welded part at the center. These specimens are tensile tested with a material test system. At the same time, the ESPI system was applied to this test. Results: From the results of ESPI, the elastic modulus and the residual stress around the welded area can be calculated and estimated. Conclusion: With this result, it is confirmed that the residual stress on the welded area can be measured with high precision by ESPI.http://www.sciencedirect.com/science/article/pii/S1738573314000047Butt-Welded AreaElastic ModulusElectronic Speckle Pattern InterferometryPhase DifferenceResidual StressStress Distribution |
| spellingShingle | Kyeongsuk Kim Taeho Choi Man gyun Na Hyunchul Jung Residual stress measurement on the butt-welded area by electronic speckle pattern interferometry Nuclear Engineering and Technology Butt-Welded Area Elastic Modulus Electronic Speckle Pattern Interferometry Phase Difference Residual Stress Stress Distribution |
| title | Residual stress measurement on the butt-welded area by electronic speckle pattern interferometry |
| title_full | Residual stress measurement on the butt-welded area by electronic speckle pattern interferometry |
| title_fullStr | Residual stress measurement on the butt-welded area by electronic speckle pattern interferometry |
| title_full_unstemmed | Residual stress measurement on the butt-welded area by electronic speckle pattern interferometry |
| title_short | Residual stress measurement on the butt-welded area by electronic speckle pattern interferometry |
| title_sort | residual stress measurement on the butt welded area by electronic speckle pattern interferometry |
| topic | Butt-Welded Area Elastic Modulus Electronic Speckle Pattern Interferometry Phase Difference Residual Stress Stress Distribution |
| url | http://www.sciencedirect.com/science/article/pii/S1738573314000047 |
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