11 April 2013 Fiber optic monitoring of a SCARC specimens with crack location prediction
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Abstract
This paper is a summary of the preliminary experimental results regarding the use of optical fiber Bragg grating (OFBG) sensing equipment to monitor the local strain about the circumference of un-axially restricted, thick walled, unreinforced concrete vessels, developed under the moniker Simulated Carbon Ash Retention Cylinder (SCARC), subject to internal expansion pressure from ash carbon concrete (ACC). Internal pressure developed following the introduction of varying combinations of cement, fly-ash, aluminum powder, carbon-dioxide, and water to the voided region of the SCARC specimens. Seven specimens were created, and monitored, so that cracking patterns, material property variables, and OFBG strain irregularities could be investigated to begin formulating a crack location prediction and detection system.
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Benjamin Smith, Benjamin Smith, Shenen Chen, Shenen Chen, Bin Shi, Bin Shi, Guangqin Wei, Guangqin Wei, Zhengfu Bian, Zhengfu Bian, } "Fiber optic monitoring of a SCARC specimens with crack location prediction", Proc. SPIE 8694, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2013, 86940O (11 April 2013); doi: 10.1117/12.2011808; https://doi.org/10.1117/12.2011808
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