EVALUATION OF FATIGUE DAMAGE ACCUMULATION BY ACOUSTIC EMISSION

D. FANG; A. BERKOVITS

doi:10.1111/j.1460-2695.1994.tb00834.x

EVALUATION OF FATIGUE DAMAGE ACCUMULATION BY ACOUSTIC EMISSION

D. FANG^*, A. BERKOVITS

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Improvements in acoustic emission (AE) test techniques have lead to developments whereby reliable acoustic emission measurements as a fatigue damage indicator were made at room temperature on Incoloy 901 smooth specimens, over a stress‐ratio range of −1.0≤R≤0.2. Fatigue damage accumulation was evaluated in terms of an AE damage definition and a damage function was developed. Thus, various damage phases in the cumulative damage process were identified by their AE signature, and then formulated and analyzed in terms of cumulative AE ringdown counts.

Original language	English
Pages (from-to)	1057-1067
Number of pages	11
Journal	Fatigue and Fracture of Engineering Materials and Structures
Volume	17
Issue number	9
DOIs	https://doi.org/10.1111/j.1460-2695.1994.tb00834.x
Publication status	Published - Sept 1994
Externally published	Yes

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abstract = "Improvements in acoustic emission (AE) test techniques have lead to developments whereby reliable acoustic emission measurements as a fatigue damage indicator were made at room temperature on Incoloy 901 smooth specimens, over a stress‐ratio range of −1.0≤R≤0.2. Fatigue damage accumulation was evaluated in terms of an AE damage definition and a damage function was developed. Thus, various damage phases in the cumulative damage process were identified by their AE signature, and then formulated and analyzed in terms of cumulative AE ringdown counts.",

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AB - Improvements in acoustic emission (AE) test techniques have lead to developments whereby reliable acoustic emission measurements as a fatigue damage indicator were made at room temperature on Incoloy 901 smooth specimens, over a stress‐ratio range of −1.0≤R≤0.2. Fatigue damage accumulation was evaluated in terms of an AE damage definition and a damage function was developed. Thus, various damage phases in the cumulative damage process were identified by their AE signature, and then formulated and analyzed in terms of cumulative AE ringdown counts.

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EVALUATION OF FATIGUE DAMAGE ACCUMULATION BY ACOUSTIC EMISSION

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