書誌事項
- タイトル別名
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- Effect of Ply Thickness on Impact Damage Modes of Thin-ply CFRP Laminates
- ハクソウカ CFRP セキソウバン ノ ショウゲキ ソンショウ キョドウ ニ オヨボス ソウ アツサ ノ エイキョウ
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<p>In this study, impact and CAI (compressive after impact) tests, with varying impact energies, were conducted using quasi-isotropic laminates with different ply thicknesses (0.02, 0.12, 0.24mm). It consisted of a 0.02-mm-thick thin-ply prepreg sheet. The effects of ply thickness and impact energy on damage characteristics and CAI strength during impact were evaluated. Furthermore, specimens were meticulously inspected after impact using X-ray CT to investigate the effect of ply thickness on damage mode, especially the locations of matrix cracks and delamination in thickness direction. Results confirmed that fiber breakages became a predominant damage mode upon decreasing the ply thickness due to the constraining effect of neighboring layers, while most of the failures in thick-ply laminates, such as matrix cracks and delamination, were resin failure. Moreover, when the ply thickness was decreased, the CAI strength was lower than that in thick-ply laminates due to the propagation of fiber breakage in the thickness direction at a high impact energy. The CAI strength improved when the impact energy was below 5 J/mm.</p>
収録刊行物
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- 日本複合材料学会誌
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日本複合材料学会誌 46 (1), 21-30, 2020-01-15
一般社団法人 日本複合材料学会
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詳細情報 詳細情報について
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- CRID
- 1391975831239153152
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- NII論文ID
- 130007975687
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- NII書誌ID
- AN00196748
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- ISSN
- 18848559
- 03852563
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- HANDLE
- 2433/265048
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- NDL書誌ID
- 030218006
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
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- 使用不可