A lifetime prediction method based on cumulative flaw length theory

Boccaccini DN, Maioli M, Cannio M, Dlouhy I, Romagnoli M, Leonelli C, Boccaccini AR (2012)

Publication Type: Journal article

Publication year: 2012

Journal

Journal of the European Ceramic Society Elsevier

Publisher: Elsevier

Book Volume: 32

Pages Range: 1175-1186

Journal Issue: 6

DOI: 10.1016/j.jeurceramsoc.2011.11.042

Abstract

Ultrasonic pulse velocity testing (UPVT) was carried out to perform non-destructive quality control of refractory plates. Used in conjunction with fracture mechanics, ultrasonic velocity measurements have proved a powerful technique for detecting, positioning and sizing internal voids and cracks in the samples, originated from the manufacturing process. Two cordierite-mullite refractory compositions exhibiting different microstructure and crack propagation behaviour were characterized through their lifetime during which they were subjected to thermal shock loading. In this paper, a new statistical method is proposed which allows to estimate the lifetime when the stress state that will be applied in service (loading) and the scattering of the ultrasonic velocity data in the as-received state are known. Since this lifetime prediction method is based on a non-destructive technique, it could be implemented into a code in an automatic quality control device for continuous lifetime estimation. The correlation between crack propagation behaviour and thermal shock resistance is discussed and semi-empirical models were developed to predict the service life of refractory plates from the measured values of ultrasonic velocities on as-received samples. © 2011 Elsevier Ltd.

Authors with CRIS profile

Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Università degli Studi di Modena e Reggio Emilia (UNIMORE) IT Italy (IT) Academy of Sciences of the Czech Republic (ASCR) / Akademie věd České republiky (AVČR) CZ Czech Republic (CZ)

How to cite

APA:

Boccaccini, D.N., Maioli, M., Cannio, M., Dlouhy, I., Romagnoli, M., Leonelli, C., & Boccaccini, A.R. (2012). A lifetime prediction method based on cumulative flaw length theory. Journal of the European Ceramic Society, 32(6), 1175-1186. https://doi.org/10.1016/j.jeurceramsoc.2011.11.042

MLA:

Boccaccini, D. N., et al. "A lifetime prediction method based on cumulative flaw length theory." Journal of the European Ceramic Society 32.6 (2012): 1175-1186.

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