STP1131

    Dynamic Stress-Intensity Factors for Interface Cracks in Layered Media

    Published: Jan 1992


      Format Pages Price  
    PDF (240K) 15 $25   ADD TO CART
    Complete Source PDF (8.5M) 15 $266   ADD TO CART


    Abstract

    The scattering of elastic waves by interfacial cracks in layered media has been investigated in this paper. A hybrid numerical method is employed for obtaining the solution. This method combines the finite element equations and the Green's function boundary integral representation. Numerical results are presented for the crack opening displacements (COD) and the Mode I and Mode II stress-intensity factors (SIF) as functions of nondimensional frequency when normal and tangential time harmonic line loads are applied on the free surface of the layered medium.

    Keywords:

    crack opening displacement, dynamic load, finite element method, Green's function, hybrid method, interface crack, layered medium, resonance, stress-intensity factors, fracture mechanics, fatigue (materials)


    Author Information:

    Bouden, M
    Research assistant, University of Colorado, Boulder, CO

    Datta, SK
    Professor, University of Colorado, Boulder, CO


    Paper ID: STP23717S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP23717S


    CrossRef ASTM International is a member of CrossRef.