Open Access

ABSTRACT

Impact Damage Detection in Composite Sandwich Structures by Low Frequency Lamb Waves

C. Soutis¹, K. Diamanti¹

1 Aerospace Engineering, The University of Sheffield, S1 3JD, U.K.; c.soutis@sheffield.ac.uk

The International Conference on Computational & Experimental Engineering and Sciences 2007, 1(2), 49-54. https://doi.org/10.3970/icces.2007.001.049

Abstract

A cost and time effective inspection strategy for in-service health monitoring of composites is demonstrated using the fundamental anti-symmetric A0 Lamb mode at frequencies of 15-20 kHz. In principle, this method involves analysis of the transmitted and/or reflected wave after interacting with the test-piece boundaries or discontinuities (defects). In the present work, the applicability of the technique to composite sandwich structures is explored.

---