Acoustic emission response of magnesium alloy during cyclic and creep tests

Kawai, Shinji; Yoshida, Yutaka; Asano, Hisashi; Miura, Setsuo; Kobayashi, Michiaki; Shibano, Jun-ichi

doi:10.1016/j.msea.2016.05.057

Cited by 12 publications

(5 citation statements)

References 20 publications

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“…98 Similarly, AE has been used to investigate the fatigue behaviour of magnesium alloys, and particularly, the effect of twinning. 18,102,103 Moreover, AE has been used to identify damage mechanisms by combining in situ AE monitoring during mechanical loading with ex situ microscopic investigations 3,84,98,104,105 to observe damage initiation. In this context, the AE technique has additionally been extended for use in microscale investigations of fatigue damage using optical 45 and electron microscopes.…”

Section: Key Results Contributions To Fatigue and Limitationsmentioning

confidence: 99%

“…Specifically, Meriaux et al focused on the identification of fatigue fretting to identify the evolution of damage as the crack grows and additional fretting locations are created . Similarly, AE has been used to investigate the fatigue behaviour of magnesium alloys, and particularly, the effect of twinning . Moreover, AE has been used to identify damage mechanisms by combining in situ AE monitoring during mechanical loading with ex situ microscopic investigations to observe damage initiation.…”

Section: Acoustic Nde Methods Used In Materials Fatiguementioning

confidence: 99%

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The use of nondestructive evaluation methods in fatigue: A review

Wisner

Mazur

Kontsos

2020

Fatigue Fract Eng Mat Struct

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Efforts to understand fatigue in materials generally rely on defining relationships between the material response to fatigue loading and the evolving remaining material life portion. Typical measurements and data associated with such relationships include load (stress), displacement (strain), and associated properties (eg, mean stress and strain, energy dissipation, and residual stiffness). In addition to obtaining such measurements, efforts have been made to leverage nondestructive evaluation (NDE) methods to obtain additional information and enhance the description of the material fatigue response, especially its evolution due to interacting material‐microstructure‐property relationships. Given the range of available NDE methods and the number of materials they can be applied to, a critical overview of related investigations is presented in this article. Specifically, the state of the art of applying optical, thermal, acoustic, electromagnetic, X‐ray, and other diffraction NDE methods in fatigue investigations is provided and discussed. The methods are individually described for background and defining their relationship to fatigue, followed by descriptions of their current uses and contributions to enhancing the understanding of fatigue, and their limitations and ways that improvements could be made.

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Section: Key Results Contributions To Fatigue and Limitationsmentioning

confidence: 99%

Section: Acoustic Nde Methods Used In Materials Fatiguementioning

confidence: 99%

The use of nondestructive evaluation methods in fatigue: A review

Wisner

Mazur

Kontsos

2020

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

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“…There is a functional relationship between accumulative energy of AE (E AE ) and strain. In addition, the internal energy of the specimens, including elastic strain energy and plastic strain energy, changed due to mechanical energy during loading [22][23][24]. The plastic strain energy stored in the mechanical microscopic defects is the main cause of cumulative damage.…”

Section: Accumulative Energy Of Ae Signalsmentioning

confidence: 99%

Rapid evaluation of fatigue limit in AZ31B magnesium alloy using acoustic emission

Yan

Dong

et al. 2018

Materials Science and Technology

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Acoustic emission (AE) was used in a fatigue experiment to characterise AE signals and to rapidly determine the fatigue limit of AZ31B magnesium (Mg) alloy. The AE signals during fatigue were characterised according to waveforms and frequency. Meanwhile, the energy dissipation in the process of fatigue, which was represented by the accumulative AE energy, can be used to determine the fatigue limit. Based on the AE parameters, the fatigue limit was 97 MPa, with an 8% error value when compared with the results obtained by the conventional S–N curve method. This model only requires the accumulated energy of the signals during strain hardening. Therefore, the fatigue limit can be determined rapidly.

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“…Meng et al 30 conducted a uniaxial cyclic loading and unloading compression experiment and studied the changes of Felicity ratio of the rock specimens over the loading-unloading cycles. Kawai et al 31 studied the AE response of an AZ31B alloy during cyclic and creep tests and reported that the fracture of magnesium alloys can be predicted on the basis of in situ AE measurements.…”

Section: Introductionmentioning

confidence: 99%

Damage and fractal evolution trends of sandstones under constant-amplitude and tiered cyclic loading and unloading based on acoustic emission

Liang

Zhang

Xie

et al. 2019

International Journal of Distributed Sensor Networks

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It is of significance to study the damage and destruction of rock under cyclic loading in geotechnical engineering. We determined the trends in damage evolution of sandstone under constant-amplitude and tiered cyclic loading and unloading under uniaxial compression. The results of the study show that (1) the variation of acoustic-emission events was consistent with the stress curves and 89% of all acoustic-emission events occurred during the cycling stages. The observed Kaiser effect was more notable in tiered cycling. (2) The damage variable increased sharply in the cycling stages and its increment was 0.07 higher for tiered cycling than constant-amplitude cycling. Sandstone exhibited greater damage under tiered cyclic loading and unloading. (3) Equations for the evolution of the damage variable under the two cycle modes were obtained by fitting of experimental data. (4) The fractal dimensions of the constant-amplitude cycle were larger than those of the tiered cycle. The process of damage and destruction presents a trend of reducing fractal dimension. The damage accumulation of sandstone under tiered cycling was faster than under constant-amplitude cycling. These results provide references for damage and early warning of rock under both constant-amplitude and tiered cyclic loading and unloading.

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Acoustic emission response of magnesium alloy during cyclic and creep tests

Cited by 12 publications

References 20 publications

The use of nondestructive evaluation methods in fatigue: A review

The use of nondestructive evaluation methods in fatigue: A review

Rapid evaluation of fatigue limit in AZ31B magnesium alloy using acoustic emission

Damage and fractal evolution trends of sandstones under constant-amplitude and tiered cyclic loading and unloading based on acoustic emission

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