Abstract

Fiber-metal laminate (FML) is a laminated composite combining thin sheets of metal in fiber-reinforced polymer matrix. It has superior properties that are ideal for aerospace applications. To develop the Lamb wave based NDE techniques for FML, numerical simulation to better understand Lamb wave response is important. An efficient framework of coupling the source and the scattering problem is presented to simulate how multiple Lamb modes that are generated by a source is scattered due to a defect. The framework is applied to a titanium-CFRP with a metal-composite interface disbond. The results are compared with those obtained from a dynamic FE method showing very good agreement.

How to Cite:

Tai, S. . & Mal, A. ., (2019) “Ultrasonic elastic waves in fiber-metal laminate structures in presence of sources and defects”, Review of Progress in Quantitative Nondestructive Evaluation .