The Development of the Cavitated Volume Fraction as a Creep Damage Indicator for Creep Remnant Life Prediction

Mbombo Okpa; Qiang Xu; Joan Lu

doi:10.3233/ATDE230434

The Development of the Cavitated Volume Fraction as a Creep Damage Indicator for Creep Remnant Life Prediction

Mbombo Okpa, Qiang Xu, Joan Lu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This paper highlights the advantages of using the cavitated volume fraction (fv) as a superior creep damage indicator compared to traditional two dimensional (2D) based parameters. With the emergence of three dimensional (3D) experimental techniques like X-ray tomography, in-situ volumetric observations have become feasible, enabling a more accurate assessment of creep damage. The cavitated volume fraction offers a comprehensive evaluation of cavity distribution, overcoming the limitations of missing information and the impact of cavity coalescence on 2D-based assessments. We present the procedure for deriving the cavitated volume fraction using the cavity size distribution function and the cavity growth pattern equation. Additionally, we discuss the potential application of the cavitated volume fraction for rupture time prediction using early-stage creep data. Overall, this paper emphasizes the importance of adopting 3D-based parameters, specifically the cavitated volume fraction, for improved creep damage assessment and lifetime prediction.

Original language	English
Title of host publication	Advances in Machinery, Materials Science and Engineering Application IX
Subtitle of host publication	Proceedings of the 9th International Conference MMSE 2023
Editors	Min Chen, Marco Giorgetti, Bo Jin, Ramesh K. Agarwal
Publisher	IOS Press
Pages	3-11
Number of pages	9
Volume	40
ISBN (Electronic)	9781643684390
ISBN (Print)	9781643684383
DOIs	https://doi.org/10.3233/ATDE230434
Publication status	Published - 17 Oct 2023
Event	9th International Conference on Advances in Machinery, Materials Science and Engineering Applications - Paris, France Duration: 22 Jul 2023 → 23 Jul 2023 Conference number: 9

Publication series

Name	Advances in Transdisciplinary Engineering
Publisher	IOS Press
Volume	40
ISSN (Print)	2352-751X
ISSN (Electronic)	2352-7528

Conference

Conference	9th International Conference on Advances in Machinery, Materials Science and Engineering Applications
Abbreviated title	MMSE 2023
Country/Territory	France
City	Paris
Period	22/07/23 → 23/07/23

Access to Document

10.3233/ATDE230434Licence: CC BY-NC

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Okpa, M., Xu, Q., & Lu, J. (2023). The Development of the Cavitated Volume Fraction as a Creep Damage Indicator for Creep Remnant Life Prediction. In M. Chen, M. Giorgetti, B. Jin, & R. K. Agarwal (Eds.), Advances in Machinery, Materials Science and Engineering Application IX : Proceedings of the 9th International Conference MMSE 2023 (Vol. 40, pp. 3-11). (Advances in Transdisciplinary Engineering; Vol. 40). IOS Press. https://doi.org/10.3233/ATDE230434

Okpa, Mbombo ; Xu, Qiang ; Lu, Joan. / The Development of the Cavitated Volume Fraction as a Creep Damage Indicator for Creep Remnant Life Prediction. Advances in Machinery, Materials Science and Engineering Application IX : Proceedings of the 9th International Conference MMSE 2023 . editor / Min Chen ; Marco Giorgetti ; Bo Jin ; Ramesh K. Agarwal. Vol. 40 IOS Press, 2023. pp. 3-11 (Advances in Transdisciplinary Engineering).

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title = "The Development of the Cavitated Volume Fraction as a Creep Damage Indicator for Creep Remnant Life Prediction",

abstract = "This paper highlights the advantages of using the cavitated volume fraction (fv) as a superior creep damage indicator compared to traditional two dimensional (2D) based parameters. With the emergence of three dimensional (3D) experimental techniques like X-ray tomography, in-situ volumetric observations have become feasible, enabling a more accurate assessment of creep damage. The cavitated volume fraction offers a comprehensive evaluation of cavity distribution, overcoming the limitations of missing information and the impact of cavity coalescence on 2D-based assessments. We present the procedure for deriving the cavitated volume fraction using the cavity size distribution function and the cavity growth pattern equation. Additionally, we discuss the potential application of the cavitated volume fraction for rupture time prediction using early-stage creep data. Overall, this paper emphasizes the importance of adopting 3D-based parameters, specifically the cavitated volume fraction, for improved creep damage assessment and lifetime prediction.",

keywords = "Creep damage, cavitated volume fraction, creep lifetime prediction",

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Okpa, M, Xu, Q & Lu, J 2023, The Development of the Cavitated Volume Fraction as a Creep Damage Indicator for Creep Remnant Life Prediction. in M Chen, M Giorgetti, B Jin & RK Agarwal (eds), Advances in Machinery, Materials Science and Engineering Application IX : Proceedings of the 9th International Conference MMSE 2023 . vol. 40, Advances in Transdisciplinary Engineering, vol. 40, IOS Press, pp. 3-11, 9th International Conference on Advances in Machinery, Materials Science and Engineering Applications, Paris, France, 22/07/23. https://doi.org/10.3233/ATDE230434

The Development of the Cavitated Volume Fraction as a Creep Damage Indicator for Creep Remnant Life Prediction. / Okpa, Mbombo; Xu, Qiang; Lu, Joan.

Advances in Machinery, Materials Science and Engineering Application IX : Proceedings of the 9th International Conference MMSE 2023 . ed. / Min Chen; Marco Giorgetti; Bo Jin; Ramesh K. Agarwal. Vol. 40 IOS Press, 2023. p. 3-11 (Advances in Transdisciplinary Engineering; Vol. 40).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - The Development of the Cavitated Volume Fraction as a Creep Damage Indicator for Creep Remnant Life Prediction

AU - Okpa, Mbombo

AU - Xu, Qiang

AU - Lu, Joan

N1 - Conference code: 9

PY - 2023/10/17

Y1 - 2023/10/17

N2 - This paper highlights the advantages of using the cavitated volume fraction (fv) as a superior creep damage indicator compared to traditional two dimensional (2D) based parameters. With the emergence of three dimensional (3D) experimental techniques like X-ray tomography, in-situ volumetric observations have become feasible, enabling a more accurate assessment of creep damage. The cavitated volume fraction offers a comprehensive evaluation of cavity distribution, overcoming the limitations of missing information and the impact of cavity coalescence on 2D-based assessments. We present the procedure for deriving the cavitated volume fraction using the cavity size distribution function and the cavity growth pattern equation. Additionally, we discuss the potential application of the cavitated volume fraction for rupture time prediction using early-stage creep data. Overall, this paper emphasizes the importance of adopting 3D-based parameters, specifically the cavitated volume fraction, for improved creep damage assessment and lifetime prediction.

AB - This paper highlights the advantages of using the cavitated volume fraction (fv) as a superior creep damage indicator compared to traditional two dimensional (2D) based parameters. With the emergence of three dimensional (3D) experimental techniques like X-ray tomography, in-situ volumetric observations have become feasible, enabling a more accurate assessment of creep damage. The cavitated volume fraction offers a comprehensive evaluation of cavity distribution, overcoming the limitations of missing information and the impact of cavity coalescence on 2D-based assessments. We present the procedure for deriving the cavitated volume fraction using the cavity size distribution function and the cavity growth pattern equation. Additionally, we discuss the potential application of the cavitated volume fraction for rupture time prediction using early-stage creep data. Overall, this paper emphasizes the importance of adopting 3D-based parameters, specifically the cavitated volume fraction, for improved creep damage assessment and lifetime prediction.

KW - Creep damage

KW - cavitated volume fraction

KW - creep lifetime prediction

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BT - Advances in Machinery, Materials Science and Engineering Application IX

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PB - IOS Press

T2 - 9th International Conference on Advances in Machinery, Materials Science and Engineering Applications

Y2 - 22 July 2023 through 23 July 2023

ER -

Okpa M, Xu Q, Lu J. The Development of the Cavitated Volume Fraction as a Creep Damage Indicator for Creep Remnant Life Prediction. In Chen M, Giorgetti M, Jin B, Agarwal RK, editors, Advances in Machinery, Materials Science and Engineering Application IX : Proceedings of the 9th International Conference MMSE 2023 . Vol. 40. IOS Press. 2023. p. 3-11. (Advances in Transdisciplinary Engineering). doi: 10.3233/ATDE230434

The Development of the Cavitated Volume Fraction as a Creep Damage Indicator for Creep Remnant Life Prediction

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