Volume 33, Issue 4 (July 2005)

    Novel Method of Evaluating Residual Stress in Vicinal Welds Based on the Magnetostrictive Technique

    (Received 20 August 2003; accepted 12 January 2005)

    Published Online: 2005

    CODEN: JTEOAD

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    Abstract

    Welding is widely used in engineering structural components and residual stress almost always exists in vicinal welds. In most cases, residual stress impairs the reliability and service life of the welded structure. Therefore, the investigation of residual stress is key to determining the quality of the welding technique. In this paper, a novel method of evaluating residual stress based on the magnetostrictive technique is proposed. Investigations with cruciform specimens and by the hole-drilling method were carried out in order to clarify the reliability of this new method. These results show that the magnetostrictive technique provides accuracy matching that of the hole-drilling method without damage. At the same time, it is more economical compared with the ultrasonic, X-ray, and neutron diffraction methods. Therefore, it is suitable for practical engineering applications. Finally, the results of a practical application are given.


    Author Information:

    Wang, X-S
    Tsinghua University, Beijing,

    Li, S-S
    Fundamental Industry Training Center, Tsinghua University, Beijing, P. R.

    Xie, D-J
    Tsinghua University, Beijing,

    Tao, S
    Shanghai Jiao Tong University, Shanghai, P. R.


    Stock #: JTE12195

    ISSN: 0090-3973

    DOI: 10.1520/JTE12195

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    Author
    Title Novel Method of Evaluating Residual Stress in Vicinal Welds Based on the Magnetostrictive Technique
    Symposium , 0000-00-00
    Committee E28