STP969: Fatigue Behavior of Axial and Pressure Cycled Butt and Girth Welds Containing Defects

    Leis, BN
    Research leader and principal engineer, Battelle Columbus Division, Columbus, OH

    Goetz, DP
    Ph.D. candidate, Texas A and M University, College Station, TX

    Scott, PM
    Research leader and principal engineer, Battelle Columbus Division, Columbus, OH

    Hudson, CM
    Head, Fracture Mechanics Engineering Section, NASA-Langley Research Center, Hampton, VA

    Pages: 18    Published: Jan 1988


    Abstract

    This paper presents the results of a study directed at developing a data base for establishing fitness-for-purpose defect acceptance criteria for welds with defects. The study focused on A106 Grade B steel pipe. Data are presented for flat plate, wall segment, and vessel specimens and actual pipe sections containing either artificial or natural planar or volumetric defects. Defect acceptance criteria developed from the test data are discussed.

    Keywords:

    welds, fatigue, defects, acceptance criteria, porosity, lack of fusion, lack of penetration, cracks, A106 Grade B steel, fitness for purpose, fracture mechanics


    Paper ID: STP33084S

    Committee/Subcommittee: E08.05

    DOI: 10.1520/STP33084S


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