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    A Suddenly Stopping Crack in an Infinite Strip Under Tearing Action

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    A problem for a clamped infinite strip, with a semi-infinite running crack under antiplane strain is considered. It is assumed that the crack initially moves steadily and then suddenly stops. By appropriate superpositioning of certain elementary problems, the stress intensity factor after the arrest is determined. This is achieved by application of the Wiener-Hopf method, and the result is given in Laplace transformed form. The inversion is done by numerical methods. For the short-time behavior explicit relations are derived. These are also applicable to other problems. The nature of the solution is discussed, and a criterion for momentaneous arrest is given.


    crack propagation, crack arrest, dynamic stress intensity, infinite strip, fracture properties

    Author Information:

    Nilsson, F
    Doctor of technology, Department of Strength of Materials and Solid Mechanics, Royal Institute of Technology, Stockholm, Sweden

    Committee/Subcommittee: E08.06

    DOI: 10.1520/STP27381S