Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Trailing Waves   We report a special phenomenon: trailing waves. They are generated by the
propagation of elastic waves in plates at large frequency-thickness (fd)
product. Unlike lamb waves and bulk waves, trailing waves are a list of
non-dispersive pulses with constant time delay between each other. Based on
Raleigh-Lamb equation, we give the analytical solution of trailing waves under
a simple assumption. The analytical solution explains the formation of not only
trailing waves but also bulk waves. It helps us better understand elastic waves
in plates. We finally discuss the great potential of trailing waves for
nondestructive testing.

20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
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The categories of this paper are: dg-ga