论文信息 - AN ESTIMATION METHOD OF LOCAL DAMAGE IN CONCRETE PLATES BY THE MODIFIED THEORETICAL MODEL

AN ESTIMATION METHOD OF LOCAL DAMAGE IN CONCRETE PLATES BY THE MODIFIED THEORETICAL MODEL

本研究は，剛飛翔体の高速衝突を受けて生じるコンクリート板の局部破壊の防護設計法について検討したものである．まず，コンクリート板の高速衝突実験を行うとともに，局部的な損傷・破壊を再現できる数値モデルを構築した．また，実験および解析結果に基づいて，コンクリート板の局部破壊メカニズムを解明した．次に，理論式にコンクリートの材料モデルとひずみ速度効果を考慮した改良式を提案し，その妥当性を確認した．最後に，破壊メカニズムに基づいて，飛翔体の衝突荷重と裏面剥離発生に必要な荷重を比較して局部破壊モードを判定する方法を提案し，その妥当性を検証した．

Masuhiro Beppu | Tomonori Ohno | Masahide Katayama | Masaharu Itoh | Koji Miwa

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