To the problem on the first symmetric normal wave reflection from the fixed end of half-strip (Q2719352)

This paper is a further development of the superpositions method for the analysis of wave processes in a half-strip with fixed end. A special attention is paid to the behavior peculiarities of the wave field in the nearest region depending on frequency and stress singularity index at angular point. The author analyses the effect of the middle plane unloading depending on frequency and stress singularity index.