Application of low frequency guided waves to delamination detection in large composite structures: a numerical study

Abstract

The aim of the current work is to identify the challenges in computational modelling of ultrasonic guidedwave propagation in large structures and developing methods to overcome them. The work includesinvestigating the application of GW in composite laminates and sandwich materials with the aim ofdelamination detection. Moreover, phased array systems are introduced as a method of overcoming thenegative effect of high damping properties in such structures. Propagation of GW in a wind turbine bladeis studied as an example of large structure with the aim of defect detection. Results that show GW canbe used as a potential tool for structural health monitoring of wind turbine blades

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