X-ray CT Analysis after Blast of Composite Sandwich Panels

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• 作者：Emily Rolfe^a ; ^{emily.rolfe11@imperial.ac.uk} ; Mark Kelly^a ; Hari Arora^b ; Paul A. Hooper^a ; John P. Dear^a
• 关键词：air blast ; underwater blast ; sandwich structures ; composites
• 刊名：Procedia Engineering
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：167
• 期：Complete
• 页码：176-181
• 全文大小：450 K
• 卷排序：167

文摘

Four composite sandwich panels with either single density or graded density foam cores and different face-sheet materials were subjected to full-scale underwater blast testing. The panels were subjected to 1kg PE4 charge at a stand-off distance of 1 m. The panel with graded density core and carbon fiber face-sheets had the lowest deflection. Post-blast damage assessment was carried out using X-ray CT scanning. The damage assessment revealed that there is a trade-off between reduced panel deflection and panel damage. This research has been performed as part of a program sponsored by the Office of Naval Research (ONR).