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Measurement of opening displacement near rapidly propagating crack tip in PMMA.
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- SUZUKI Shinichi
- Toyohashi University of Technology
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- KAWACHI Masahiro
- Omron Tateisi Electronics Co.
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- KATO Munehisa
- Toyohashi University of Technology
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- NAKAJIMA Takurou
- Ishikawajima Harima Heavy Industry
Bibliographic Information
- Other Title
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- PMMA中を高速進展するき裂先端付近の開口変位測定
- 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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Description
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.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 39 (443), 1157-1161, 1990
The Society of Materials Science, Japan
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Details 詳細情報について
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- CRID
- 1390282680369339904
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- NII Article ID
- 110002297730
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 3674505
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed