4.1 Transient response of angular stress
The transient response of angular stress with different axial ratios and
different ωp in the three cases was analyzed
according to the case study. The numerical results were shown in Figs.
14-18. As shown in Figs. 14-16, the spatial distribution of transientαηDSCF was similar to
steady-state αηDSCF . TransientαηDSCF always had a maximum
value at both ends of the elliptical minor axis, and a minimum value of
0 at both ends of the elliptical major axis. When the shape of inclusion
was close to circle and the
incident wave was high dominant frequency, the extreme values appeared
at other angles. Distribution ofαηDSCF was symmetric about thex -axis and the value ofαηDSCF was affected by