3231 発泡コアサンドイッチパネルのモードII型き裂進展抑制法の実験と解析による評価(J07-1 締結・接合の力学とプロセス(1),J07 締結・接合の力学とプロセス)

概要

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New type of crack arrester was proposed for interfacial crack between facing and core for CFRP/foam core sandwich panel. The energy release rates was calculated and evaluated with FE analyses. The considerable reduction of the energy release rates at the crack tip was observed as the crack tip approached to the crack arrester. The crack arrester effect was confirmed through the mode II type loading fracture toughness test using sandwich panel specimen with 10mm radius crack arrester. It is demonstrated that this new concept of the crack arrester may become the promising device to suppress the crack initiation and propagation for foam core sandwich panel.
一般社団法人日本機械学会の論文
2006-09-15