STP945

    An Assessment of the Corresponding Stress-Intensity Factor for Accounting for Boundary Effects in Cracked Bodies

    Published: Jan 1988


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    Abstract

    An integrated frozen stress photoelastic and moiré interferometric method is briefly described and the results of applying the method to study boundary effects for several crack geometries in finite-thickness nearly incompressible bodies are discussed. Results confirm Benthem's analysis at the free surface but suggest a thick transitional zone through the thickness. A linear elastic fracture mechanics quantity called the corresponding stress-intensity factor is found to be a conservative way of interpreting test data near crack tips in elastic nearly incompressible materials.

    Keywords:

    stress intensity factors, boundary effects, Eigenfunction problems, photoelastic and moiré analysis, linear elastic fracture mechanics


    Author Information:

    Smith, CW
    Alumni professor, research assistant, and assistant professor, Virginia Polytechnic Institute and State University, Blacksburg, VA

    Lloyd, WR
    Alumni professor, research assistant, and assistant professor, Virginia Polytechnic Institute and State University, Blacksburg, VA

    Olaosebikan, O
    Alumni professor, research assistant, and assistant professor, Virginia Polytechnic Institute and State University, Blacksburg, VA


    Paper ID: STP23270S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP23270S


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