Impact Damage Detection in Composite Sandwich Structures by Low Frequency Lamb Waves
C. Soutis and K. Diamanti
Source icces, Vol. 1, No. 2, pp. 49-54
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Keywords
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.