Calculation and visualization of Lamb wave motion
Lamb wave propagation was calculated by using hybrid boundary element method (HBEM) that is the combination of the analytical mode expansion and boundary element method. HBEM makes it possible to simulate Lamb wave propagation in large plates with shorter computational time. The numerical results, e.g. displacements and stresses, were collected at every time step for the inner grid points and visualized as mpeg movies or jpeg pictures. The generation mechanism of Lamb waves is investigated as a numerical example.
Hayashi
T
Materials Processing Dept., National Institute for Resources and Environment, Ibaraki, Japan. takahiro@nire.go.jp
Endoh
S