書誌事項
- タイトル別名
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- Estimation of Impact Damage in C/C Composites by Drop Weight Tests (Estimation of Impact Damage in UD-C/C Composites)
- ラクスイ シケン ニ ヨル C C フクゴウ ザイリョウ ノ ショウゲキ ソンショウ ヒョウカ UD C C フクゴウ ザイリョウ ノ ショウゲキ ソンショウ ヒョウカ
- Estimation of Impact Damage in UD-C/C Composites
- UD-C/C複合材料の衝撃損傷評価
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抄録
Due to low impact strength of C/C composites, it's important to evaluate impact damage properties and impact strength. In this study, the estimating method for impact damage is used to evaluate the relationship between the impact load and displacement, absorbed energy of UD-C/C specimens on a drop weight impact test. The measured impact load is decomposed in approximation components and detail components, and is reduced higher mode of vibration by multiple resolution analysis in wavelet transform. The results are as follows : (1) It is effective for evaluating the damage zone and the initiation by using the impact load-deflection diagram and the absorbed energy. (2) The Daubechies' wavelet is useful for smoothing the impact load signals by multiple resolution analysis in wavelet transform. (3) In the low impact energy that most of the damage does not produce, the approximation component demanded by wavelet analysis accords with the wave pattern of the numerical computation result that is removed free vibration component.
収録刊行物
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- 日本機械学会論文集Ａ編
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日本機械学会論文集Ａ編 72 (719), 1057-1064, 2006
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282679454067840
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- NII論文ID
- 110004763321
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- NII書誌ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
- http://id.crossref.org/issn/03875008
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- NDL書誌ID
- 8050018
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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
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可