Simulação de perda de espessura por corrosão de um vaso de pressão de um compressor.

Abstract

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.