Anomalous Lamb waves in cubic crystals at a non-semisimple degeneracy of the fundamental matrix
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES(2024)
Abstract
An explicit equation is derived for the condition of non-semisimple degeneracy of the fundamental matrix and, hence, the occurrence of anomalous guided waves propagating along the crystallographic axes of a cubic crystal. It is revealed that the observed non-semisimple degeneracy appears at a certain phase velocity in any cubic crystal of type I, but this kind of degeneracy is not possible in cubic crystals of type II. The analysis is based on the Cauchy sextic formalism combined with the spectral analysis of the fundamental matrix.
MoreTranslated text
Key words
Cubic crystal,Lamb wave,fundamental matrix,degeneracy,phase velocity
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined