SOUZA, A. S.; http://lattes.cnpq.br/7012709577113093; SOUZA, Aécio Silva.
Resumo:
In this study, the analysis and simulation of pressure vessels were conducted using
the design criteria established by the ASME standard and simulating thickness loss due
to corrosion. The study involved the failure analysis of a Schulz brand pressure vessel,
which was tested through finite element simulation under pressures of 12 and 19 bar. In
the case with 12 bar pressure, the pressure vessel performed adequately, with no failures
occurring. However, at 19 bar, there was an indication of a possible failure due to a safety
coefficient below 1. The study also included an evaluation of deterioration by corrosion,
where the vessel's thickness was reduced, and new simulations were conducted. The
results identified corrosion and excessive pressure as the main risk factors for rupture,
especially at the welded joints and the thinner areas of the hull affected by corrosive
elements. The analysis concluded that internal corrosion is one of the main causes of
failures in pressure vessels.
