書誌事項
- タイトル別名
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- Measurement of opening displacement near rapidly propagating crack tip in PMMA.
- PMMAチュウ オ コウソク シンテンスル キレツ センタン フキン ノ カイ
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説明
Pulsed holographic microscopy was applied to take an instantaneous microscopic photograph of a rapidly propagating crack in PMMA. The crack was in the opening mode and its speed was at several hundred m/s. The crack and craze opening displacement, which are both called COD, were measured as a function of distance r from the craze tip within the region of r up to 8mm. The crack opening displacement was nearly proportional to √r, while the craze opening displacement deviated from the curve of √r. The crack tip opening displacement (CTOD) was determined from the measured COD data, and the dynamic stress intensity factor KI(v) was also obtained. Furthermore, the value of J-integral was calculated by assuming small scale yielding. It happens that cracks which have the same KI(v) value and crack speed show different COD profile in the craze layer.
収録刊行物
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- 材料
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材料 39 (443), 1157-1161, 1990
公益社団法人 日本材料学会
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詳細情報 詳細情報について
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- CRID
- 1390282680369339904
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- NII論文ID
- 110002297730
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- NII書誌ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL書誌ID
- 3674505
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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サーチ
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
