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New Publication: Advancing Understanding of Interfacial Mechanics

Jun 17, 2023

Research on the Interfacial Debonding of Distributed Fiber Optic Sensors

I am thrilled to announce that our most recent publication, "Metaheuristic inverse analysis on interfacial mechanics of distributed fiber optic sensors undergoing interfacial debonding," has been featured in the esteemed journal Mechanical Systems and Signal Processing by Elsevier (IF=8.934).


Abstract

Distributed fiber optic sensors with protective packages have shown unique capabilities in measuring strain and crack distributions for structural health monitoring. However, the mechanics at the fiber-package interface remain unclear when debonding occurs. This paper investigates the interfacial mechanics for distributed fiber optic sensors undergoing debonding through mechanical analysis and metaheuristic-based inverse analysis. First, the governing equation of the interfacial mechanics is established and solved with assistance from metaheuristic-based inverse analysis on the interfacial properties of fiber optic cables. Then, experiments were conducted to validate the analysis results by measuring the strain distributions in distributed fiber optic sensors based on optical frequency domain reflectometry. The results showed that the proposed approach accurately quantified the interfacial mechanics, interfacial properties, strain transfer, and debonding behavior in distributed fiber optic sensors. This research advances the fundamental understandings of the sensing mechanisms of distributed fiber optic sensors undergoing inelastic behaviors for structural health monitoring.


Read the full article here.

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