爆薬要素のモデル化が鉄筋コンクリート構造物の爆発応答特性に与える影響

• 安藤 智啓

  防衛省陸上装備研究所　耐弾・耐爆構造研究室

書誌事項

タイトル別名

• Effects of modeling method of explosive mesh on response characteristics of RC structures subjected to blast loadings

抄録

In this study, effects of modeling method of explosive mesh on responses of reinforced concrete (RC) structures subjected to blast loadings from a relatively long standoff are numerically discussed comparing analytical results with the corresponding experimental ones. Here, an explosive is modeled by Euler mesh and Lagrange mesh, respectively. RC structures (a RC beam and a box-type RC structure) are modeled by Lagrange mesh. The material model of concrete is given as a relatively simple model used by the authors in the past. The main results obtained here are as follows: 1) in case of the long standoff detonation condition, effects of modeling method of explosive mesh on response characteristics of RC structures subjected to blast loadings may be large, 2) applying Euler mesh as the explosive model, the responses of RC structures subjected to blast loadings would be simulated relatively well by using the simple material model of concrete.

収録刊行物

• 構造工学論文集 Ａ

  構造工学論文集 Ａ 54A 999-1010, 2008

  公益社団法人 土木学会

キーワード

• RC構造物
• オイラー要素
• ラグランジュ要素
• 爆発解析
• 応答

詳細情報

• CRID: 1390001205284969600
• NII論文ID: 130004503671
• DOI: 10.11532/structcivil.54a.999
• ISSN: 1881820X
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可