Damage caused by dynamic/cyclic loading of a detonation chamber

Yasuhito Takashima; Mitsuru Ohata; Tetsuya Tagawa; Fumiyoshi Minami; Bart Simoens; Michel H. Lefebvre; Robert E. Nickell; Kenji Koide; Ryusuke Kitamura; Koichi Hayashi; Joseph K. Asahina

doi:10.1115/1.4023733

Damage caused by dynamic/cyclic loading of a detonation chamber

Yasuhito Takashima, Mitsuru Ohata, Tetsuya Tagawa, Fumiyoshi Minami, Bart Simoens, Michel H. Lefebvre, Robert E. Nickell, Kenji Koide, Ryusuke Kitamura, Koichi Hayashi, Joseph K. Asahina

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Abstract

The plastic damage caused by multiple dynamic loading and its influence on the ductility and toughness of 3.5% Ni steel (SA203E) and C steel (SA516M) were examined for the discussion of integrity design of detonation chambers. V-notched specimens and hourglass specimens were welded on the 1/7-scale model of a 1-ton explosive class detonation chamber and subjected to 30 detonation shots. It has been indicated that 30 detonation shots caused prestrain in the specimens. The ductility was reduced by the prestrain. The Charpy impact toughness was affected as well in a lower temperature. It has been noted that the damage is developed with fatigue crack growth at the notch root of the V-notched specimen.

Original language	English
Article number	041404
Journal	Journal of Pressure Vessel Technology, Transactions of the ASME
Volume	135
Issue number	4
DOIs	https://doi.org/10.1115/1.4023733
Publication status	Published - 2013

Keywords

3.5% Ni steel
explosive detonation
fatigue crack growth
multiple dynamic loading
prestrain
tensile strength
toughness

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10.1115/1.4023733

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title = "Damage caused by dynamic/cyclic loading of a detonation chamber",

abstract = "The plastic damage caused by multiple dynamic loading and its influence on the ductility and toughness of 3.5% Ni steel (SA203E) and C steel (SA516M) were examined for the discussion of integrity design of detonation chambers. V-notched specimens and hourglass specimens were welded on the 1/7-scale model of a 1-ton explosive class detonation chamber and subjected to 30 detonation shots. It has been indicated that 30 detonation shots caused prestrain in the specimens. The ductility was reduced by the prestrain. The Charpy impact toughness was affected as well in a lower temperature. It has been noted that the damage is developed with fatigue crack growth at the notch root of the V-notched specimen.",

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AU - Takashima, Yasuhito

AU - Ohata, Mitsuru

AU - Tagawa, Tetsuya

AU - Minami, Fumiyoshi

AU - Simoens, Bart

AU - Lefebvre, Michel H.

AU - Nickell, Robert E.

AU - Koide, Kenji

AU - Kitamura, Ryusuke

AU - Hayashi, Koichi

AU - Asahina, Joseph K.

PY - 2013

Y1 - 2013

N2 - The plastic damage caused by multiple dynamic loading and its influence on the ductility and toughness of 3.5% Ni steel (SA203E) and C steel (SA516M) were examined for the discussion of integrity design of detonation chambers. V-notched specimens and hourglass specimens were welded on the 1/7-scale model of a 1-ton explosive class detonation chamber and subjected to 30 detonation shots. It has been indicated that 30 detonation shots caused prestrain in the specimens. The ductility was reduced by the prestrain. The Charpy impact toughness was affected as well in a lower temperature. It has been noted that the damage is developed with fatigue crack growth at the notch root of the V-notched specimen.

AB - The plastic damage caused by multiple dynamic loading and its influence on the ductility and toughness of 3.5% Ni steel (SA203E) and C steel (SA516M) were examined for the discussion of integrity design of detonation chambers. V-notched specimens and hourglass specimens were welded on the 1/7-scale model of a 1-ton explosive class detonation chamber and subjected to 30 detonation shots. It has been indicated that 30 detonation shots caused prestrain in the specimens. The ductility was reduced by the prestrain. The Charpy impact toughness was affected as well in a lower temperature. It has been noted that the damage is developed with fatigue crack growth at the notch root of the V-notched specimen.

KW - 3.5% Ni steel

KW - explosive detonation

KW - fatigue crack growth

KW - multiple dynamic loading

KW - prestrain

KW - tensile strength

KW - toughness

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Damage caused by dynamic/cyclic loading of a detonation chamber

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Keywords

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