Frequency domain observations of small motions at concrete/steel interfaces [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 1996. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 10 pages : digital, PDF file
- Additional Creators:
- Lawrence Livermore National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- When two rough interfaces in contact are driven in harmonic motion, the frictional resistance to shear causes the response of the driven system to be nonlinear. Displacement along the interface cannot be described by a linear predictor, one analogous to Hooke`s law for elastic response. Laboratory experiments are described here to illustrate that the resulting motion is not random, but produces measurable and characteristic output at harmonics of the driving frequency. Although the geometry of the tests is not practical for evaluating the integrity of steel/concrete interfaces in structures, the results illustrate that the principle should apply to other geometries where shearing forces can be applied to interfaces to determine the quality of bonding.
- Published through SciTech Connect., 06/01/1996., "ucrl-id--124224", "DE96013820", and Bonner, B.P.
- Funding Information:
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