Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A nested genetic algorithm strategy for the optimal plastic design of
  frames   An innovative strategy for the optimal design of planar frames able to resist
to seismic excitations is here proposed. The procedure is based on genetic
algorithms (GA) which are performed according to a nested structure suitable to
be implemented in parallel computing on several devices. In particular, this
solution foresees two nested genetic algorithms. The first one, named "External
GA", seeks, among a predefined list of profiles, the size of the structural
elements of the frame which correspond to the most performing solution
associated to the highest value of an appropriate fitness function. The latter
function takes into account, among other considerations, of the seismic safety
factor and the failure mode which are calculated by means of the second
algorithm, named "Internal GA". The details of the proposed procedure are
provided and applications to the seismic design of two frames of different size
are described.

25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th