2020 Volume 17 Issue 18 Pages 20200246
A novel time-domain (TD) asymptotic-numerical solution (novel TD-ANS), which provides basic knowledge of engineering applications such as a nondestructive testing of reinforced concrete structures, is proposed for the forward transient scattered magnetic field when an ultra-wideband (UWB) pulse wave is incident on a metal cylinder covered with a homogeneous medium layer (coated metal cylinder). The TD-ANS is represented by multiple reflected and surface diffracted ray (multiple RSD) series solution in the TD. The TD-ANS is useful in understanding forward transient scattering phenomena because it can reproduce any part of a response waveform. The accuracy and validity of the TD-ANS are confirmed by comparing with the reference solution.
