Fiber optic monitoring of a SCARC specimens with crack location prediction

Benjamin Smith; Shenen Chen; Bin Shi; Guangqin Wei; Zhengfu Bian

doi:10.1117/12.2011808

11 April 2013 Fiber optic monitoring of a SCARC specimens with crack location prediction

Benjamin Smith, Shenen Chen, Bin Shi, Guangqin Wei, Zhengfu Bian

Proceedings Volume 8694, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2013; 86940O (2013) https://doi.org/10.1117/12.2011808
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

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.

Citation Download Citation

Benjamin Smith, Shenen Chen, Bin Shi, Guangqin Wei, and 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); https://doi.org/10.1117/12.2011808

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