Multiple-mode Lamb wave scattering simulations using 3D elastodynamic finite integration technique

► We simulate 3D Lamb wave interaction with flaws in aluminum plates and compare to experimental data. ► The plate thickness leads to the existence of numerous dispersive Lamb wave modes at once. ► The multiple modes require a unique way to make comparisons to experimental data. ► Results compare well with experiment and provide insight into multiple mode Lamb wave behavior. ► We also show that 3D simulations can explore other complicated flaw situations related to NDE.