Application of Nonlinear Elastic Resonance Spectroscopy For Damage Detection In Concrete: An Interesting Story
- Los Alamos National Laboratory
Nonlinear resonance ultrasound spectroscopy experiments conducted on concrete cores, one chemically and mechanically damaged by alkali-silica reactivity, and one undamaged, show that this material displays highly nonlinear wave behavior, similar to many other damaged materials. They find that the damaged sample responds more nonlinearly, manifested by a larger resonant peak and modulus shift as a function of strain amplitude. The nonlinear response indicates that there is a hysteretic influence in the stress-strain equation of state. Further, as in some other materials, slow dynamics are present. The nonlinear response they observe in concrete is an extremely sensitive indicator of damage. Ultimately, nonlinear wave methods applied to concrete may be used to guide mixing, curing, or other production techniques, in order to develop materials with particular desired qualities such as enhanced strength or chemical resistance, and to be used for damage inspection.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- DOE/LANL
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1044877
- Report Number(s):
- LA-UR-12-22590; TRN: US201214%%546
- Resource Relation:
- Conference: 17th International Conference on Nonlinear Elasticity in Materials ; 2012-07-01 - 2012-07-07 ; Cefalua, Italy
- Country of Publication:
- United States
- Language:
- English
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