skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Evaluation and significance of fracture toughness in ceramic materials

Abstract

Fracture toughness tests of several ceramic materials were carried out according to the various test methods, that is the Bridge indentation (BI, SEPB), Fatigue precrack (FP), Controlled surface flaw (CSF), Chevron notch (CN) and Indentation fracture (IF) methods. Mutual comparison of the test results was made to discuss the validity and applicability of each test method. Significance of the apparent fracture toughness with stable crack growth was discussed. The intrinsic fracture toughness can be obtained by the CSF method, in which a small surface crack is used. At high temperatures, since nonlinear deformation due to softening of glass phase and stable crack growth occur, nonlinear fracture mechanics approach should be applied. J{sub IC}-value is successfully evaluated according to the R-curve method.

Authors:
 [1]
  1. Nagaoka Univ. of Technology (Japan). Dept. of Mechanical Engineering
Publication Date:
OSTI Identifier:
597690
Report Number(s):
CONF-9406335-
Journal ID: ISSN 1040-3094; TRN: IM9812%%136
Resource Type:
Conference
Resource Relation:
Conference: 26. national symposium on fracture mechanics, Idaho Falls, ID (United States), 28-30 Jun 1994; Other Information: PBD: 1995; Related Information: Is Part Of Fracture mechanics: 26. volume; Reuter, W.G. [ed.] [Lockheed Martin Idaho Technologies, Idaho Falls, ID (United States)]; Underwood, J.H. [ed.] [Army Armament Research and Development Center, Watervliet, NY (United States)]; Newman, J.C. Jr. [ed.] [National Aeronautics and Space Administration, Hampton, VA (United States). Langley Research Center]; PB: 853 p.; ASTM special technical publication 1256
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; FRACTURE PROPERTIES; CRACK PROPAGATION; MECHANICAL TESTS; COMPARATIVE EVALUATIONS; CALCULATION METHODS

Citation Formats

Mutoh, Y. Evaluation and significance of fracture toughness in ceramic materials. United States: N. p., 1995. Web.
Mutoh, Y. Evaluation and significance of fracture toughness in ceramic materials. United States.
Mutoh, Y. 1995. "Evaluation and significance of fracture toughness in ceramic materials". United States.
@article{osti_597690,
title = {Evaluation and significance of fracture toughness in ceramic materials},
author = {Mutoh, Y},
abstractNote = {Fracture toughness tests of several ceramic materials were carried out according to the various test methods, that is the Bridge indentation (BI, SEPB), Fatigue precrack (FP), Controlled surface flaw (CSF), Chevron notch (CN) and Indentation fracture (IF) methods. Mutual comparison of the test results was made to discuss the validity and applicability of each test method. Significance of the apparent fracture toughness with stable crack growth was discussed. The intrinsic fracture toughness can be obtained by the CSF method, in which a small surface crack is used. At high temperatures, since nonlinear deformation due to softening of glass phase and stable crack growth occur, nonlinear fracture mechanics approach should be applied. J{sub IC}-value is successfully evaluated according to the R-curve method.},
doi = {},
url = {https://www.osti.gov/biblio/597690}, journal = {},
issn = {1040-3094},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: