A statistical approach for the assessment of reliability in ceramic materials from ultrasonic velocity measurement: Cumulative Flaw Length Theory

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Boccaccini DN, Maioli M, Cannio M, Romagnoli M, Veronesi P, Leonelli C, Boccaccini AR
Zeitschrift: Engineering Fracture Mechanics
Verlag: Elsevier
Jahr der Veröffentlichung: 2009
Heftnummer: 76
Seitenbereich: 1750-1759
ISSN: 0013-7944


Abstract


A primary objective of statistical fracture approach is to predict the probability of failure of a component for an arbitrary stress state when the failure statistics are known. This study introduces the fundamentals and application of a new approach to characterize the mechanical behaviour of high temperature ceramic materials, including refractory materials, by coupling non-destructive methods, in particular ultrasonic velocity measurement, and the Batdorf statistical fracture theory. A new approach, termed Cumulative Flaw Length Theory (CFLT), has been developed for the case of macroscopically homogeneous isotropic materials containing randomly oriented microcracks uniformly distributed in a location subjected to non-uniform multiaxial stresses. A function representing the number of cracks per unit volume is estimated based on the histograms of ultrasonic velocity measurements. This function is used without additional assumptions to determine the probability of fracture under an arbitrary stress condition. Two different cordierite-mullite high temperature ceramic materials were characterized under the assumptions of this theory to provide experimental evidence to support the model. © 2009 Elsevier Ltd. All rights reserved.



FAU-Autoren / FAU-Herausgeber

Boccaccini, Aldo R. Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)


Autor(en) der externen Einrichtung(en)
Università degli Studi di Modena e Reggio Emilia (UNIMORE)


Zitierweisen

APA:
Boccaccini, D.N., Maioli, M., Cannio, M., Romagnoli, M., Veronesi, P., Leonelli, C., & Boccaccini, A.R. (2009). A statistical approach for the assessment of reliability in ceramic materials from ultrasonic velocity measurement: Cumulative Flaw Length Theory. Engineering Fracture Mechanics, 76, 1750-1759. https://dx.doi.org/10.1016/j.engfracmech.2009.03.008

MLA:
Boccaccini, D. N., et al. "A statistical approach for the assessment of reliability in ceramic materials from ultrasonic velocity measurement: Cumulative Flaw Length Theory." Engineering Fracture Mechanics 76 (2009): 1750-1759.

BibTeX: 

Zuletzt aktualisiert 2018-07-08 um 03:26