Dynamic stress intensity factors(DSIF) and the scattering cross section (SCS) are evaluated numerically,the resonances of DSIF and SCS at lower frequencies due to the debondings arise obviously.

• 数值求解给出了脱离区大小和衬砌厚度对动应力强度因子(DSIF)和散射截面(SCS)的影响。 结果显示由于脱胶,动应力强度因子和散射截面呈现明显的低频共振特性。