Frequency domain observations of small motions at concrete/steel interfaces
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 274200
- Report Number(s):
- UCRL-ID-124224
ON: DE96013820
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: Jun 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; MECHANICAL STRUCTURES; NONDESTRUCTIVE TESTING; MATERIALS TESTING; BONDING; INTERFACES; SHEAR; STEELS; CONCRETES; OSCILLATORS; MECHANICAL VIBRATIONS; TORSION
Citation Formats
Bonner, B.P.. Frequency domain observations of small motions at concrete/steel interfaces. United States: N. p., 1996.
Web. doi:10.2172/274200.
Bonner, B.P.. Frequency domain observations of small motions at concrete/steel interfaces. United States. doi:10.2172/274200.
Bonner, B.P.. Sat .
"Frequency domain observations of small motions at concrete/steel interfaces". United States.
doi:10.2172/274200. https://www.osti.gov/servlets/purl/274200.
@article{osti_274200,
title = {Frequency domain observations of small motions at concrete/steel interfaces},
author = {Bonner, B.P.},
abstractNote = {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.},
doi = {10.2172/274200},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jun 01 00:00:00 EDT 1996},
month = {Sat Jun 01 00:00:00 EDT 1996}
}
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