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Summary of the fracture experiments for the different specimen orientation using a LEFM approach.
| Orientation | Pmax/PQa | KQ (MPa m1/2) | KIC (MPa m1/2) |
|---|---|---|---|
| A | 1 | 21.6 | 21.6 |
| 1 | 26.3 | 26.3 | |
| 1 | 20.5 | 20.5 | |
| B | 1.86 | 50.2 | – |
| 1.39 | 59.1 | – | |
| 1.23 | 75.4 | – | |
| C | 1.51 | 48.5 | – |
| 1.52 | 46.7 | – | |
| 1.75 | 46.3 | – | |
Pmax/PQ is the ratio of maximal force, Pmax, and the calculated value, PQ, using the 5% secant deviation procedure according to ASTM E-399.
