Evaluation of Energy Absorption and Damage for Sandwich Panels Subjected to Low Velocity Impact

• 資料種別: 記事
• タイトル: Evaluation of Energy Absorption and Damage for Sandwich Panels Subjected to Low Velocity Impact
• 著者・編者: Dan Mihai CONSTANTINESCU; Oana Alexandra MOCIAN; Stefan SOROHAN
• 著者標目: Dan Mihai CONSTANTINESCU; Oana Alexandra MOCIAN; Stefan SOROHAN
• タイトル（掲載誌）: Advanced experimental mechanics / Editorial board for advanced experimental mechanics [編]
• 巻号年月日等（掲載誌）: 7:2022.8
• 掲載巻: 7
• 掲載ページ: 3-20
• 掲載年月日（W3CDTF）: 2022-08
• ISSN（掲載誌）: 2189-4752
• ISSN-L（掲載誌）: 2189-4752
• 出版事項（掲載誌）: Niigata : The Japanese Society for Experimental Mechanics
• 出版地（国名コード）: JP
• 本文の言語コード: eng
• 件名標目: Foam core; Aluminum and composite face sheets; Low velocity impact; Energy absorption; Damage assessment
• NDLC: ZM17
• 対象利用者: 一般
• 所蔵機関: 国立国会図書館
• 請求記号: Z63-D560
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館雑誌記事索引; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 032335257; http://id.ndl.go.jp/bib/032335257
• 整理区分コード: 632

• 要約等: <p>Impact resistance and energy absorbing capability are of great interest in the design of sandwich structures. Thispaper experimentally studies damage, failure, and energy absorption properties of polyurethane (PUR) and polystyrene (PS)foam core sandwich panels with aluminum and glass fiber reinforced (GFR) composite face sheets subjected to low velocityimpact. Tests are performed using an Instron Ceast 9340 drop tower impact system at different impact velocities. Drop weighttests were conducted on sandwich panels with different types of foam and face sheet. Two commercial foams were used ascore for the sandwich panels: polyurethane Necuron 100 of 100 kg/m³ density and extruded polystyrene of 32 kg/m³ density.The experimental results were compared in terms of force-displacement response and damage status. It was found that theaddition of short glass fibers to the composite face sheets increased the maximum impact force and reduced the debonding ofthe bottom face sheets for both foam grades. The use of lower density polystyrene foam increased the flexibility of the panelsand improved the ultimate failure response of the composite sandwich panels. The energy absorbing capabilities of aluminumand composite face sheet sandwich panels with PUR and PS foam cores are evaluated by means of absorbed energy-timehistories and by specific parameters as normalized absorbed energy, specific energy absorption, and crush force efficiency.Stiffer panels behave better at lower impact velocities, while more ductile ones perform better if impact energy is increased.</p>
• DOI: 10.11395/aem.7.0_3
• オンライン閲覧公開範囲: インターネット公開
• 連携機関・データベース: 科学技術振興機構 : J-STAGE; http://www.jstage.jst.go.jp

• 要約等: <p>Impact resistance and energy absorbing capability are of great interest in the design of sandwich structures. Thispaper experimentally studies damage, failure, and energy absorption properties of polyurethane (PUR) and polystyrene (PS)foam core sandwich panels with aluminum and glass fiber reinforced (GFR) composite face sheets subjected to low velocityimpact. Tests are performed using an Instron Ceast 9340 drop tower impact system at different impact velocities. Drop weighttests were conducted on sandwich panels with different types of foam and face sheet. Two commercial foams were used ascore for the sandwich panels: polyurethane Necuron 100 of 100 kg/m³ density and extruded polystyrene of 32 kg/m³ density.The experimental results were compared in terms of force-displacement response and damage status. It was found that theaddition of short glass fibers to the composite face sheets increased the maximum impact force and reduced the debonding ofthe bottom face sheets for both foam grades. The use of lower density polystyrene foam increased the flexibility of the panelsand improved the ultimate failure response of the composite sandwich panels. The energy absorbing capabilities of aluminumand composite face sheet sandwich panels with PUR and PS foam cores are evaluated by means of absorbed energy-timehistories and by specific parameters as normalized absorbed energy, specific energy absorption, and crush force efficiency.Stiffer panels behave better at lower impact velocities, while more ductile ones perform better if impact energy is increased.</p>
• DOI: 10.11395/aem.7.0_3; https://doi.org/10.11395/aem.7.0_3
• 関連情報（URI）: http://id.ndl.go.jp/bib/032335257; https://ndlsearch.ndl.go.jp/books/R000000004-I032335257
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: Japan Link Center; https://japanlinkcenter.org/top; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 032335257; http://id.ndl.go.jp/bib/032335257