The use of magnetic barkhausen noise analysis for mechanical stresses evaluation
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2005
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INTERNATIONAL CONGRESS OF MECHANICAL ENGINEERING, 18th
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During its operational life, structural components are submitted to the influence of different failure-inducing
agents, such as temperature and reactive environment. The combined action of these agents allied to the presence of
residual stresses and applied stresses have a great influence on the components life and in-service behavior. Important
information used for structural integrity evaluation of a particular component is the real stress state present in it. The
possibility to determine the value of the stresses acting in the component by means of a nondestructive testing method
presents an important feature because it does not introduce any changes into the material tested. The electromagnetic
testing method based on the Barkhausen noise analysis presents advantages such as the possibility to perform stress
measurements at high temperatures. This paper presents a study about the use of the Barkhausen noise analysis as a
non-destructive testing method for determining the stress state in ferromagnetic materials. The experiments were
carried out in ASTM A-515, ASTM A-36 and USI SAC 50 steels, used for pressure vessels and structural components
manufacturing. The results obtained have showed a good sensitivity of this test method to stress changes. The main
restrictions and applications of this testing method are discussed.
Como referenciar
SILVA JUNIOR, S.F.; MATTAR NETO, M. The use of magnetic barkhausen noise analysis for mechanical stresses evaluation. In: INTERNATIONAL CONGRESS OF MECHANICAL ENGINEERING, 18th, November 6-11, 2005, Ouro Preto, MG. Proceedings... Disponível em: http://repositorio.ipen.br/handle/123456789/18336. Acesso em: 19 Feb 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.