Abstract
The Wallin, Saario, Törrönen (WST) model, published originally in 1984,
assumes the cleavage initiators to be carbides. The preliminary trials
of the model appeared promising. However, at the time, it was not
considered possible to fully calibrate the model to provide actual
predictions of fracture toughness based on microstructural and
mechanical property information, because of lack of computational power.
Today, more than 20 years later the computational means have evolved
sufficiently so that a new version of the WST model can be developed.
The new version is connected to a general statistical model and includes
the effect of strain. It is with some success compared to actual
material data, predicting the cleavage initiation location.
Original language | English |
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Pages (from-to) | 3367 - 3377 |
Number of pages | 11 |
Journal | Engineering Fracture Mechanics |
Volume | 75 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2008 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Carbides
- Cleavage fracture
- Local approach
- Statistical
- ProperTune