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US 12,019,048 B2Granted
Cementitious sensors with acoustic stopbands using carbon nanotubes
AssigneeUNM Rainforest Innovations
InventorsMahmoud Reda Taha, Sang M. Han, John Stormont, Thomas Dewers, Laura L Pyrak-Nolte, Shreya Vemuganti
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Abstract
A sensor having one or more stopbands and method of using the same for detecting damage, cracking and debonding in a cement structure comprising a cementitious material and a plurality of periodic structures located in the cementitious material.
Claims21
A sensor for detecting damage, cracking and debonding in a cement structure comprising:
- a cementitious material;
- a plurality of periodic structures located in said cementitious material;
- and said periodic structures having an acoustic stopband.
A method for detecting damage, cracking and debonding in a cement structure comprising the following steps:
- locating in the structure a plurality of sensors;
- said sensors comprised of a cementitious material, a plurality of periodic structures located in said cementitious material, and said periodic structures having an acoustic stopband;
- generating acoustic signals in said structure and analyzing said signals for detecting damage, cracking and debonding in the structure;
- and
- wherein said periodic structures is deposited predetermined sensor geometry or sensor array having a predetermined pattern.
2 more elements
Dependencies are inferred from the claim text.