DYNAMIC FRACTURE TOUGHNESS EVALUATION ON BRITTLE MATERIALS.

M. Niinomi; Y. Koide; T. Kobayashi

DYNAMIC FRACTURE TOUGHNESS EVALUATION ON BRITTLE MATERIALS.

M. Niinomi, Y. Koide, T. Kobayashi

Materials Development Division

Research output: Contribution to conference › Paper › peer-review

Abstract

An analysis method for real fracture energy of ceramics, composites and epoxy resins by instrumented Charpy impact tests on unnotched specimens is presented. The dynamic fracture toughness value (K//d) is evaluated. The values are in good agreement with those evaluated from the fracture load by stress wave analysis. Reliability is ascertained by Weibull plot analysis. The effect of notch root radius on dynamic fracture toughness is examined. A linear relationship is obtained between the critical elastic strain energy release rate and notch root radius. The fracture toughness value obtained is in good agreement with that obtained from a fatigue cracked specimen.

Original language	English
Pages	336-337
Number of pages	2
Publication status	Published - 1986 Dec 1

ASJC Scopus subject areas

Engineering(all)

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title = "DYNAMIC FRACTURE TOUGHNESS EVALUATION ON BRITTLE MATERIALS.",

abstract = "An analysis method for real fracture energy of ceramics, composites and epoxy resins by instrumented Charpy impact tests on unnotched specimens is presented. The dynamic fracture toughness value (K//d) is evaluated. The values are in good agreement with those evaluated from the fracture load by stress wave analysis. Reliability is ascertained by Weibull plot analysis. The effect of notch root radius on dynamic fracture toughness is examined. A linear relationship is obtained between the critical elastic strain energy release rate and notch root radius. The fracture toughness value obtained is in good agreement with that obtained from a fatigue cracked specimen.",

author = "M. Niinomi and Y. Koide and T. Kobayashi",

year = "1986",

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T1 - DYNAMIC FRACTURE TOUGHNESS EVALUATION ON BRITTLE MATERIALS.

AU - Niinomi, M.

AU - Koide, Y.

AU - Kobayashi, T.

PY - 1986/12/1

Y1 - 1986/12/1

N2 - An analysis method for real fracture energy of ceramics, composites and epoxy resins by instrumented Charpy impact tests on unnotched specimens is presented. The dynamic fracture toughness value (K//d) is evaluated. The values are in good agreement with those evaluated from the fracture load by stress wave analysis. Reliability is ascertained by Weibull plot analysis. The effect of notch root radius on dynamic fracture toughness is examined. A linear relationship is obtained between the critical elastic strain energy release rate and notch root radius. The fracture toughness value obtained is in good agreement with that obtained from a fatigue cracked specimen.

AB - An analysis method for real fracture energy of ceramics, composites and epoxy resins by instrumented Charpy impact tests on unnotched specimens is presented. The dynamic fracture toughness value (K//d) is evaluated. The values are in good agreement with those evaluated from the fracture load by stress wave analysis. Reliability is ascertained by Weibull plot analysis. The effect of notch root radius on dynamic fracture toughness is examined. A linear relationship is obtained between the critical elastic strain energy release rate and notch root radius. The fracture toughness value obtained is in good agreement with that obtained from a fatigue cracked specimen.

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