Phase Space Reconstruction Based Methodology For Real Time Impact Assessment of Corrosion On Structural Health of Ship Material Using In-situ Acoustic Emission Sensors

Abstract

Corrosion being one of the important primary causes of ship structure damage, the study of corrosion phenomena for real-time structural health monitoring of ships becomes a necessity. In this paper the real-time prediction methodology for assessment of impact of corrosion on the structural health condition of ships is developed. The two different scan rates i.e. 0.2 and 0.1 mV/s, were used to simulate the scenario of corrosion in seawater. The corrosion damage in the material was depicted by analysing the current density and acoustic emission (AE) absolute energy. The mean of box count (MBC) values produced by developed methodology correlates with the current density and absolute energy and predicts the corrosion accurately.