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Damage caused by dynamic/cyclic loading of detonation chamber

  • Yasuhito Takashima
  • , Mitsuru Ohata
  • , Tetsuya Tagawa
  • , Bart Simoens
  • , Michel H. Lefebvre
  • , Robert E. Nickell
  • , Kenji Koide
  • , Ryusuke Kitamura
  • , Koichi Hayashi
  • , Joseph K. Asahina
  • , Fumiyoshi Minami
  • Osaka University
  • Applied Science and Technology
  • Kobe Steel, Ltd.

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Résumé

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. Vnotched specimens and hourglass specimens were welded on 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 pre-strain in the specimens. The ductility was reduced by the pre-strain. 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 notch root of the V-notched specimen.

langue originaleAnglais
titreASME 2011 Pressure Vessels and Piping Conference, PVP 2011
Pages105-112
Nombre de pages8
Les DOIs
étatPublié - 2011
EvénementASME 2011 Pressure Vessels and Piping Conference, PVP 2011 - Baltimore, MD, États-Unis
Durée: 17 juil. 201121 juil. 2011

Série de publications

NomAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume5
ISSN (imprimé)0277-027X

Une conférence

Une conférenceASME 2011 Pressure Vessels and Piping Conference, PVP 2011
Pays/TerritoireÉtats-Unis
La villeBaltimore, MD
période17/07/1121/07/11

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