Nitesh P. Yelve

TL;DR: In this article, a Lamb wave based nonlinear method is used to detect delamination in a composite laminate and a new hybrid method is introduced, wherein the spectral and temporal data are used together in order to locate a delamination.

TL;DR: In this article, active vibration control of structures using SIFT has been discussed, and the authors propose a method to control the vibration of a building using a SIFT-based SIFT sensor.

TL;DR: In this article, the authors used piezoelectric wafer transducers for generating and sensing Lamb wave in the experiments and finite element simulation, and the spectral damage index estimated from the results of both experiments and simulation for various crack depths is found to be in good agreement and follows increasing trend with increase in the crack depth.

TL;DR: In this paper, a physics-based equation giving the nonlinearity parameter γ phy in terms of higher order elastic constants is derived considering the Lamb wave motion, which can also be used to quantify the density of dislocations once the amplitudes of the fundamental and second harmonics of Lamb waves in a specimen are made available from the experiments or simulation.

TL;DR: In this article, experiments are carried out on an Aluminium (Al) plate with and without damage, using Lamb waves and an array of four Piezoelectric Wafer transducers bonded onto it.