Model for fracture of ceramics based on the probability distribution of fracture toughness

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Abstract

Generally speaking, the scatter of fracture strength depends on the defect size only. However, we experience that the fracture toughness of ceramics has a scatter even if the defects are the same size. Therefore in this paper we propose a model for fracture of ceramics by introducing the probability distribution of fracture toughness. Based on this model, a simple method is developed to predict the fracture probability for ceramics structures with arbitrary shapes. Four-point-bending tests of alumina ceramics are carried out to examine the validity of the present method. Good agreement between the test results and those predicted by the developed method has been obtained.

Original languageEnglish
Title of host publicationLocalized Damage IV
PublisherComputational Mechanics Inc
Pages831-838
Number of pages8
Publication statusPublished - 1996
Externally publishedYes
EventProceedings of the 1996 4th International Conference on Computer-Aided Assessment and Control - Fukuoka, Jpn
Duration: Jun 3 1996Jun 5 1996

Other

OtherProceedings of the 1996 4th International Conference on Computer-Aided Assessment and Control
CityFukuoka, Jpn
Period6/3/966/5/96

All Science Journal Classification (ASJC) codes

  • Software

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  • Cite this

    Mori, K., & Noguchi, H. (1996). Model for fracture of ceramics based on the probability distribution of fracture toughness. In Localized Damage IV (pp. 831-838). Computational Mechanics Inc.