Acoustic emission measurements on reactor pressure vessel steel

Palmer, I.G.

doi:10.1016/0025-5416(73)90083-9

Cited by 60 publications

(14 citation statements)

References 7 publications

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“…Use of the technique in the UK began some ten years later than in the USA, with interest being shown by Bentley [9] (AERE, Risley), Sinclair [10] and Palmer [11] (CEGB) and Birchon et al [12] (AMTE). In all three cases, the method was taken up because of the possibility of monitoring nuclear power plant with limited access.…”

Section: Historical Backgroundmentioning

confidence: 99%

Acoustic emission: its techniques and applications

Dukes¹,

Culpan²

1984

IEE Proc. A Phys. Sci. Meas. Instrum. Manage. Educ. Rev. UK

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Acoustic emission offers the possibility of inspecting the whole volume of large structures from a limited number of access points. The paper discusses the historical development of the technique and describes the instrumentation and analytical methods used for interpretation. Experience has shown that, contrary to early statements, acoustic emission is not a universal inspection tool and the latter portion of the paper describes applications where the technique does have some chance of success.

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Section: Historical Backgroundmentioning

confidence: 99%

Acoustic emission: its techniques and applications

Dukes¹,

Culpan²

1984

IEE Proc. A Phys. Sci. Meas. Instrum. Manage. Educ. Rev. UK

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“…The power equation has a general form 1' = AX 8 (3) where 1' is the estimated values of the AE parameter for an observed value of X or da/dN. Equation (3) can be readily transposed in a linear form by logarithmic transformation A log Y = log A + B log X (4) The least-squares line corresponding to the transformation of (3) minimizes the squares of the deviations of log Y from log 1', and not the squares of the deviations of Y fromlr, where Yare actual recorded values of the dependent variable, da/dN in this case.…”

Section: A-30mentioning

confidence: 99%

Program to develop acoustic emission-flaw relationship for inservice monitoring of nuclear pressure vessels. Annual report, July 1, 1976 - October 1, 1977

Hutton¹,

Kurtz²,

Schwenk³

et al. 1978

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“…The most widely used application of AE non-destructive testing nowadays might be to find the active defects in the pressure vessel equipment [4][5][6]8], which is biaxially loaded by cyclically changing internal operating pressure. A ductile low-alloy ferritic-martensitic steel grade 9MnSi5 is among the most widely used structural steels in the pressure vessel design.…”

Section: Methodsmentioning

confidence: 99%

Acoustic Emission Assessment of Impending Fracture in a Cyclically Loading Structural Steel

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Danyuk

Afanasyev

et al. 2016

Metals

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Using the advanced acoustic emission (AE) technique, we address the problem of early identification of crack initiation and growth in ductile structural steels under cyclic loading. The notched 9MnSi5 steel specimens with weld joints were fatigue tested at room and lower temperatures with concurrent AE measurements. Detection of AE in ductile materials where fatigue crack initiation and propagation is mediated by local dislocation behavior ahead of the notch or crack tip is challenging because of an extremely low amplitude of the AE signal. With account of this issue, two new practically oriented criteria for recognition of different stages of fatigue are proposed on the basis of AE data: (1) a power spectrum-based criterion and (2) a pattern recognition-based criterion utilizing modern clustering algorithms. The applicability of both criteria is verified using obtained AE data. A good correspondence between AE outcomes and experimental observations of the fatigue behavior was obtained and is discussed.

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Acoustic emission measurements on reactor pressure vessel steel

Cited by 60 publications

References 7 publications

Acoustic emission: its techniques and applications

Acoustic emission: its techniques and applications

Program to develop acoustic emission-flaw relationship for inservice monitoring of nuclear pressure vessels. Annual report, July 1, 1976 - October 1, 1977

Acoustic Emission Assessment of Impending Fracture in a Cyclically Loading Structural Steel

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