H. Lopes

TL;DR: In this article, the authors present a literature review regarding the use of several sets of admissible functions in the Ritz method and compare the performance of these sets of functions in terms of these three features.

TL;DR: A novel method, consisting of shearographic non-destructive testing and 2D undecimated wavelet transform as a post-processing tool, is presented, showing the high sensitivity of the proposed method to either single or multiple damage, including its edges and its various configurations.

TL;DR: In this paper, a method is proposed to evaluate the experimental noise in measurements with speckle shearography whenever it is in the range [−π, π] and the limits of the proposed method are assessed by applying it to phase maps with added noise.

TL;DR: This paper presents a method for the identification of damage in plates based on the post-processing with wavelets of modal rotation fields obtained by use of a num...

TL;DR: In this paper, a combination of vibration-based method and speckle shearography was used to identify, locate and quantify the damage in composite structures, and the results were analyzed by using a new damage metric, where the metric values were compared in terms of their capability for identifying damage.