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Stress Analysis on Welded Specimen with Multiple Methods

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Advancement of Optical Methods in Experimental Mechanics, Volume 3

Abstract

Effects of the thermal stress due to welding on the mechanical property of the welded work are analyzed with multiple methods. Strain gauges and an acoustic microscope are used to measure the residual stress, and electronic speckle pattern interferometry (ESPI) is used to analyze the response of the welded wok to external force. A tensile load is applied to butt-welded, thin-plate steel specimens, and the resultant strain field is analyzed with the ESPI. Comparison is made with the case of a non-welded specimen of the same material and dimensions. The analyses indicate that the residual stress due to welding makes the normal strain due to the external tensile load asymmetric. The asymmetry enhances shear and rotational modes of deformation, generating stress concentration at a point away from the weld where the residual stress is substantially negligible.

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Acknowledgment

This work was supported by the National Research Foundation of Korea (NRF) grants funded by the Korean government MEST, NRF-2013R1A2A2A05005713, NRF-2013M2A2A9043274, and the National Science Foundation (IRES: 0927033).

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Authors and Affiliations

  1. Department of Chemistry and Physics, Southeastern Louisiana University, SLU 10878, Hammond, LA, 70402, USA

    Sanichiro Yoshida, Sean Craft, Jeremy Haase & Tyler Becker

  2. Department of Mechanical Engineering, Niigata University, IkarashinNinocho 8050, Nishi-ku, Niigata-shi, Niigata, 950-2181, Japan

    Tomohiro Sasaki & Masaru Usui

  3. Department of Mechanical and Aotomotive Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 139-743, South Korea

    Ik-Keun Park

Authors
  1. Sanichiro Yoshida
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  2. Tomohiro Sasaki
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  3. Sean Craft
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  4. Masaru Usui
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  5. Jeremy Haase
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  6. Tyler Becker
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  7. Ik-Keun Park
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Corresponding author

Correspondence to Sanichiro Yoshida .

Editor information

Editors and Affiliations

  1. Sandia National Laboratories, Livermore, USA

    Helena Jin

  2. Illinois Institute of Technology, Chicago, Illinois, USA

    Cesar Sciammarella

  3. Southeastern Louisiana University, Hammond, USA

    Sanichiro Yoshida

  4. Bari, Italy

    Luciano Lamberti

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© 2015 The Society for Experimental Mechanics, Inc.

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Yoshida, S. et al. (2015). Stress Analysis on Welded Specimen with Multiple Methods. In: Jin, H., Sciammarella, C., Yoshida, S., Lamberti, L. (eds) Advancement of Optical Methods in Experimental Mechanics, Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-06986-9_15

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  • DOI: https://doi.org/10.1007/978-3-319-06986-9_15

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-06985-2

  • Online ISBN: 978-3-319-06986-9

  • eBook Packages: EngineeringEngineering (R0)

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