Fracture Assessment of Blunt V-Notched Graphite Specimens by Means of the Strain Energy Density
The main aim of the present work is to check the suitability of the brittle fracture model, namely the local strain energy density (SED), in predicting the experimental results on mode I fracture of blunt V-notched graphite components. For this purpose, a wide range of test results reported in...
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| Date: | 2013 |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
| Published: |
Інститут проблем міцності ім. Г.С. Писаренко НАН України
2013
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| Series: | Проблемы прочности |
| Subjects: | |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/112678 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Fracture Assessment of Blunt V-Notched Graphite Specimens by Means of the Strain Energy Density / A.R. Torabi, F. Bertoh // Проблемы прочности. — 2013. — № 6. — С. 5-21. — Бібліогр.: 42 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | The main aim of the present work is to check
the suitability of the brittle fracture model,
namely the local strain energy density (SED), in
predicting the experimental results on mode I
fracture of blunt V-notched graphite components.
For this purpose, a wide range of test results
reported in the recent literature on brittle
fracture of V-notched test specimens characterized
by different geometries is considered. The
specimens are made of the same type of coarsegrained
polycrystalline graphite. The fracture assessment
is carried out predicting theoretically
the fracture loads by means of the SED criterion.
The SED parameter is evaluated by averaging
the local energy over a well-defined control
volume which embraces the notch edge. It is
found that the SED criterion allows assessing
the fracture behavior of graphite specimens
characterized by different notch angles and tip
radii. |
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