摘要
应用作者提出的二阶势理论，本文研究了各向同性弹性介质中Ｐ波与ＳＶ波的非线性相互作用，得到了相互作用波的表达式。结果表明，当上述二个波的传播方向所夹的角接近于所谓“撕裂角”时，介质中的薄弱环节可能被撕裂；结果还表明，当上述二个原波的频率不相同时，相互作用波只有和频波能产生撕裂现象。
Using the second-order potential theory proposed by the author, this paper gives an investigation to the nonlinear interaction of P and SV waves in isotropic elastic media. It is pointed outthat, if the angle included between vectors of both waves is close to the 'splitting angle' I then the weaksegment in the media may be splitted out. When frequencies of two primary waves are different, onlythe sum-frequency component of the interacting wave can cause the phenomenon mentioned above.
出处
《声学学报》
EI
CSCD
北大核心
1996年第4期346-351,共6页
Acta Acustica
基金
国家自然科学基金
