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Failure modes of specimens with 0° cracks.
| Specimen | Failure Mode | Note |
|---|---|---|
| S1-1 | Not conducted | Unaccepted mode |
| S2-1 | Not conducted | Unaccepted mode |
| S3-1 | End crushing | Unaccepted mode |
| S4-1 | End crushing | Unaccepted mode |
| S5-1 | End crushing | Unaccepted mode |
| S6-1 | Critical failure mode | Accepted mode |
| S7-1 | Failure in the test area | Accepted mode |
| S8-1 | Failure in the test area | Accepted mode |
| S9-1 | Failure in the test area | Accepted mode |
