%0 Journal Article
%T DIFFRACTION OF SH-WAVES BY A CIRCULAR CAVITY WITH A PARIIALLY DEBONDED LINER<br>SH波对有部分脱胶衬砌的圆形孔洞的散射
%A Wang Yuesheng
%A Wang Duo
%A <br>汪越胜
%A 王铎
%J 力学学报
%D 1994
%I 
%X This paper deals with the problem of diffraction of SH-waves by a circularcavity with a partially debonded liner. The debonding resions are modeled as arc-shapedinterface cracks. Using the wave function expansion method and introducing the dislocationdensity functions as unknown variables, the problem is reduced to a set of singular inte-gral equations which are solved numerically to obtain the dynamic stress intensity factors(DSIF_s), far-field displacements and scattering cross-section(SCS). The results show thatDSIF and SCS have resonances at lower frequencies due to debondings.
%K diffraction of elastic wave
%K arc-shaped interface crack
%K debonding wavefunction
%K singular integral equation
%K dynamic stress intensity factor
%K scattering cross-section<br>弹性波散射，弧形界面裂纹，脱胶，波函数，奇异积分方程，动应力强度因子，散射截面
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=E0B06C3635C529D39749B744F155AEBE&yid=3EBE383EEA0A6494&vid=96C778EE049EE47D&iid=E158A972A605785F&sid=8C5DE51F0A009A0F&eid=8F2250DA83AF77B8&journal_id=0459-1879&journal_name=力学学报&referenced_num=11&reference_num=4