ON MEASUREMENT AND VALIDITY OF ELASTIC-PLASTIC FRACTURE TOUGHNESS PARAMETERS BY INSTRUMENTED CHARPY IMPACT TEST.

T. Kobayashi; I. Yamamoto; M. Niinomi

ON MEASUREMENT AND VALIDITY OF ELASTIC-PLASTIC FRACTURE TOUGHNESS PARAMETERS BY INSTRUMENTED CHARPY IMPACT TEST.

T. Kobayashi, I. Yamamoto, M. Niinomi

Materials Development Division

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

2 Citations (Scopus)

Abstract

The test material was ASTM A533 Grade B Steel for reactor pressure Toyohashi University of Technology, Toyohashi 440 Japan vessels. High tensile strength (80kgf/mm**2 class) steel HT80, mild steel (40kgf/mm**2 class) SS41 and aluminum alloys (7075 and 2017) were also used in various heat treated conditions. Dynamic fracture toughness characteristics for crack initiation and crack propagation were estimated using a pre-cracked Charpy type specimen and an instrumented Charpy test. An energy application larger than 3-fold of the absorbed energy is a necessary condition for accurately recording the load deflection curve. Utilization of side grooves will make it possible to obtain a valid J//I//d value with standard Charpy tests.

Original language	English
Pages	75-79
Number of pages	5
Publication status	Published - 1986 Dec 1

ASJC Scopus subject areas

Engineering(all)

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Cite this

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title = "ON MEASUREMENT AND VALIDITY OF ELASTIC-PLASTIC FRACTURE TOUGHNESS PARAMETERS BY INSTRUMENTED CHARPY IMPACT TEST.",

abstract = "The test material was ASTM A533 Grade B Steel for reactor pressure Toyohashi University of Technology, Toyohashi 440 Japan vessels. High tensile strength (80kgf/mm**2 class) steel HT80, mild steel (40kgf/mm**2 class) SS41 and aluminum alloys (7075 and 2017) were also used in various heat treated conditions. Dynamic fracture toughness characteristics for crack initiation and crack propagation were estimated using a pre-cracked Charpy type specimen and an instrumented Charpy test. An energy application larger than 3-fold of the absorbed energy is a necessary condition for accurately recording the load deflection curve. Utilization of side grooves will make it possible to obtain a valid J//I//d value with standard Charpy tests.",

author = "T. Kobayashi and I. Yamamoto and M. Niinomi",

year = "1986",

month = dec,

day = "1",

language = "English",

pages = "75--79",

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T1 - ON MEASUREMENT AND VALIDITY OF ELASTIC-PLASTIC FRACTURE TOUGHNESS PARAMETERS BY INSTRUMENTED CHARPY IMPACT TEST.

AU - Kobayashi, T.

AU - Yamamoto, I.

AU - Niinomi, M.

PY - 1986/12/1

Y1 - 1986/12/1

N2 - The test material was ASTM A533 Grade B Steel for reactor pressure Toyohashi University of Technology, Toyohashi 440 Japan vessels. High tensile strength (80kgf/mm**2 class) steel HT80, mild steel (40kgf/mm**2 class) SS41 and aluminum alloys (7075 and 2017) were also used in various heat treated conditions. Dynamic fracture toughness characteristics for crack initiation and crack propagation were estimated using a pre-cracked Charpy type specimen and an instrumented Charpy test. An energy application larger than 3-fold of the absorbed energy is a necessary condition for accurately recording the load deflection curve. Utilization of side grooves will make it possible to obtain a valid J//I//d value with standard Charpy tests.

AB - The test material was ASTM A533 Grade B Steel for reactor pressure Toyohashi University of Technology, Toyohashi 440 Japan vessels. High tensile strength (80kgf/mm**2 class) steel HT80, mild steel (40kgf/mm**2 class) SS41 and aluminum alloys (7075 and 2017) were also used in various heat treated conditions. Dynamic fracture toughness characteristics for crack initiation and crack propagation were estimated using a pre-cracked Charpy type specimen and an instrumented Charpy test. An energy application larger than 3-fold of the absorbed energy is a necessary condition for accurately recording the load deflection curve. Utilization of side grooves will make it possible to obtain a valid J//I//d value with standard Charpy tests.

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