Failure analysis – a duty of IPT

Hamilton Lelis Ito, Jonas de Carvalho Gomes

Resumo

Since the early 1900’s, the time when IPT acquired its first optical microscope for metallography, failure analysis has been an important activity which IPT has always been involved in. The term failure analysis has a broad meaning, but the intent now is to restrict this meaning to the analyses performed on fractured or cracked mechanical components and structures intended to determine their causes. Cases related to loss of stability of structures due to deformation, wear and general corrosion, which are also considered failures, will not be treated in this article. Engineers normally try to design machines, engines, and all sorts of mechanical components and structures to be failure proof. For that material selection, manufacturing processes, assembling, and maintenance recommendations are carefully specified. The obedience to these specifications normally prevents failures. However, if one or more of the items specified above is not obeyed, the possibility of failure will increase. Furthermore, there are situations, in which even though all the specifications are followed by the book, a part can fail, and an accident ensues. Some selected failure analysis case studies performed by IPT are presented in this paper. The trends for the future are to apply monitoring techniques to mechanical components and structures able to alert the possibility of failures before they occu

 

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Referências

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