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Tuesday, May 12, 2020 | History

3 edition of Opening of an interface flaw in a layered elastic half-plane under compressive loading found in the catalog.

Opening of an interface flaw in a layered elastic half-plane under compressive loading

Kennedy, John M.

Opening of an interface flaw in a layered elastic half-plane under compressive loading

by Kennedy, John M.

  • 256 Want to read
  • 17 Currently reading

Published by National Aeronautics and Space Administration, Langley Research Center in Hampton, Va .
Written in English

    Subjects:
  • Composite materials.,
  • Airframes -- Fatigue.

  • Edition Notes

    StatementJohn M. Kennedy, W.B. Fichter and James G. Goree.
    SeriesNASA technical memorandum -- 86282.
    ContributionsFichter, W. B., Goree, J. G., Langley Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15320512M


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Opening of an interface flaw in a layered elastic half-plane under compressive loading by Kennedy, John M. Download PDF EPUB FB2

Get this from a library. Opening of an interface flaw in a layered elastic half-plane under compressive loading. [John M Kennedy; W B Fichter; J G Goree; Langley Research Center.].

The plane elastic deformation of a notched half-plane which is compressed by a flat rigid surface is investigated. The stress and displacement fields of this notched halfplane are felt to be representative of the conditions occurring in the neighborhood of a flaw on the surface of a compressed circular by: 1.

Opening of an interface flaw in a layered elastic half-plane under compressive loading [microform] / Joh The implications of corrosion with respect to aircraft structural integrity / G.K.

Cole, G. Clark and P. Development of a Structural Integrity Recording System (SIRS) for U.S. Army AH-1S helicopters [microfor.

Particularly, the initial separation load and point where the layer separated from the elastic half plane and the variation of the stress distribution between elastic layer and elastic half plane is examined depending on material properties, width of punches, and magnitude of the external loads, and.

Due to the different settlement of punches, a separation takes place between punch I and elastic layer Cited by: 6. On the other hand, if the upper half-plane is more compliant than the lower half-plane, β, we find that the compressed and tensile zone of the normal stress at the crack surfaces is exchanged.

That is, the normal stress at the crack surface become tensile near the crack tip, but compressive around the crack by: A linear problem formulation was used in [11,15] to derive boundary integral equations for a crack at the interface between elastic half-spaces under dynamic loading.

Makaryan et al. () also analyzed a cracked elastic layer under compressive loads and found that the crack-tip field is only dominated by mode-II singularity.

The effect of elastic. Then, the interface mechanics of an elastic film bonded to a half-plane coated with a graded layer, whose modulus abides by an exponential variation law, is re-analyzed in order to verify the present unified model. The non-slipping contact model of a half-plane coated with a power law graded layer and a thin-film is mainly by: A semi-infinite interface crack between two infinite isotropic elastic layers under general edge loading conditions is considered.

The problem can be solved analytically except for a single real scalar independent of loading, which is then extracted from the numerical solution for one particular loading combination.

When the solid is under compressive loading, the cracks tend to close. Thus, crack faces may come into contact and slide against each other. Due to this tension and compression asymmetry of the cracks, the effective compressive modulus of a cracked solid may differ from its effective tensile modulus [].Furthermore, sliding of the crack faces may lead to a compressive modulus Cited by:.