Micromechanical Coupled Study of Crack Growth Initiation Criterion in Pressure Vessel Steel
We present results of the combined design-theoretical investigation of the mechanism of crack growth at the onset of ductile fracture of NPP reactor pressure vessels. Micromechanical approach to the prediction of ductile fracture has been applied, according to which the volume fraction of voids...
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| Date: | 2004 |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Інститут проблем міцності ім. Г.С. Писаренко НАН України
2004
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| Series: | Проблемы прочности |
| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/47060 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Micromechanical Coupled Study of Crack Growth Initiation Criterion in Pressure Vessel Steel / M. Rakin, A. Sedmak, Z. Cvijovic, M. Zrilic, S. Sedmaka // Проблемы прочности. — 2004. — № 1. — С. 48-53. — Бібліогр.: 12 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | We present results of the combined design-theoretical
investigation of the mechanism of crack
growth at the onset of ductile fracture of NPP reactor
pressure vessels. Micromechanical approach to
the prediction of ductile fracture has been applied,
according to which the volume fraction of voids in
the deformed material is determined by finite-element
method. On the basis of CT-specimen tests
and known damage parameters, obtained on
smooth spherical specimens, we obtained
micromechanical criterion of crack growth initiation
for ductile fracture. |
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